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Hackers target WordPress sites via third-party WooCommerce plugin

Attackers exploit unauthenticated file-upload flaw CVE-2026-27540 in WooCommerce Wholesale Lead Capture plugin to install PHP webshells; Wordfence blocked 100,000+ attacks.

CVE-2026-27540 is an unauthenticated arbitrary file-upload vulnerability in the WooCommerce Wholesale Lead Capture premium plugin (versions 2.0.3.1 and older), caused by the exposed wwlc_file_upload_handler AJAX action trusting a user-controlled file_settings allowlist. Discovered by researcher Teemu Saarentaus, it was fixed in version 2.0.3.2 released February 20. Defiant reports Wordfence blocked over 100,000 attacks, with exploitation spikes between June 4-17, July 1, and August 30, delivering shell.php webshells for reconnaissance and additional payload uploads.

BleepingComputerupdated · 4h agofirst · 19h agoExploit / PoC in the wild 4 sourcesCVE-2026-27540

ZDI-26-658: Adobe Acrobat Pro DC JPEG Parsing Integer Overflow Remote Code Execution Vulnerability

ZDI discloses CVE-2026-81987, an integer overflow in Adobe Acrobat Pro DC JPEG parsing enabling remote code execution with CVSS 7.8.

The Zero Day Initiative published ZDI-26-658 covering an integer overflow in Adobe Acrobat Pro DC's parsing of JPEG files. Successful exploitation allows arbitrary code execution but requires user interaction, such as opening a malicious file or visiting a malicious page. ZDI assigned a CVSS score of 7.8 and tracked the flaw as CVE-2026-81987.

ZDI Published Advisories · 6d agoAdvisory 19 sourcesCVE-2026-81987

Over 440,000 Exploit Attempts Target Super Forms and Elementor Pro RCE Flaws

Wordfence blocked 440,000+ exploit attempts against critical unauthenticated RCE flaws in WordPress plugins Super Forms and Elementor Pro.

Wordfence reports mass exploitation of two unauthenticated arbitrary file upload RCE flaws: CVE-2026-14894 in Super Forms (CVSS 9.8, fixed in 6.3.314) and CVE-2026-32475 in Elementor Pro (CVSS 9.0/9.8, fixed in 4.2.2), with over 250,000 and 190,000 blocked exploit attempts respectively. Attackers upload Base64-encoded PHP web shells such as Mushr00w_upl.php to execute code, create administrator accounts, exfiltrate data, or seize sites. Super Forms exploitation began July 14, 2026 and peaked above 40,000 requests on August 18; Elementor Pro attacks started August 19. Successful Elementor Pro exploitation requires a published page with a Form widget containing a File Upload field.

The Hacker News · 12d agoExploit / PoC in the wildCVE-2026-14894CVE-2026-32475

[webapps] WooCommerce 1.5.0 - Unauthenticated Arbitrary File Upload

An unauthenticated arbitrary file upload exploit was released for a WooCommerce component version 1.5.0, risking site compromise.

Exploit-DB published exploit #52642 targeting WooCommerce 1.5.0. The flaw allows unauthenticated arbitrary file uploads, which can lead to remote code execution on affected web servers. The disclosure text does not report exploitation in the wild.

Exploit-DB · Aug 17, 2026Exploit / PoC

Elementor Pro Flaw Could Let Unauthenticated Attackers Upload PHP and Execute Code

Patchstack disclosed CVE-2026-32475 (CVSS 9.0), an unauthenticated file-upload flaw in Elementor Pro enabling PHP upload and RCE; fixed in version 4.2.2.

Patchstack researcher Tin Pham reported an unrestricted file upload flaw in Elementor Pro's Forms module (CVE-2026-32475, CVSS 9.0), affecting all versions up to and including 4.2.1. Submitting two file parts for one field bypasses the extension blocklist and writes attacker-controlled PHP into a public uploads directory, yielding unauthenticated remote code execution when a published Elementor page uses a Form widget with a File Upload field. A patched version 4.2.2 shipped August 19, 2026, a day after WordPress 7.0.4 fixed CVE-2026-65640 (CVSS 8.8), an RCE via Postscript file upload when Imagick and Ghostscript are in use.

The Hacker News · 27d agoVulnerabilityCVE-2026-32475CVE-2026-656401

Critical Unauthenticated File Upload to RCE in Elementor Pro Plugin

Elementor Pro WordPress plugin has an unauthenticated arbitrary file upload flaw in its Forms module allowing remote code execution.

Patchstack disclosed a critical unauthenticated arbitrary file upload vulnerability in the Elementor Pro WordPress plugin that can lead to remote code execution. The flaw is in the Forms module's File Upload field, where the extension check and the file-move step run in two separate loops with inconsistent handling of empty file entries. The writeup describes exploitation via crafted upload submissions; no CVE id or evidence of in-the-wild exploitation is given in the post.

Patchstack · 27d agoVulnerability

Elementor Pro WordPress Plugin Vulnerability Exploited to Hack Sites

Attackers are actively exploiting critical file-upload flaw CVE-2026-32475 in Elementor Pro, hacking WordPress sites; Defiant has blocked over 190,000 exploit attempts since patching.

Defiant warns that attackers are exploiting CVE-2026-32475 (CVSS 9.8), an unauthenticated arbitrary file upload flaw in the Elementor Pro WordPress plugin's form submission handling, which affects all versions up to 4.2.1 and was patched in version 4.2.2 on August 19. Exploitation began immediately after the fix shipped, with Defiant blocking over 190,000 exploit attempts to date; roughly two-thirds of Elementor's 10 million installations still ran a vulnerable version as of September 4. Successful exploitation writes attacker-controlled PHP files to /wp-content/uploads/elementor/forms/ and can lead to full site compromise; administrators should check that directory for PHP files and review requests to /wp-admin/admin-ajax.php.

SecurityWeek · 10d agoExploit / PoC in the wildCVE-2026-32475

Attackers Actively Exploiting Critical Vulnerability in Super Forms Plugin

Attackers are actively exploiting a critical unauthenticated file upload flaw in the Super Forms WordPress plugin to deploy PHP backdoors for RCE.

Wordfence disclosed on July 9, 2026 a critical unauthenticated arbitrary file upload vulnerability in the Super Forms WordPress plugin, which has roughly 13,000 active installations. Unauthenticated attackers can upload arbitrary files, including PHP backdoors, to achieve remote code execution. The vendor now reports that attackers are actively exploiting the flaw in the wild.

Wordfence · 12d agoExploit / PoC in the wild

Telerik UI Padding-Oracle Bug Chained to Unauthenticated RCE — Public Exploit Released

TantoSec published a working exploit chaining a Telerik UI padding oracle to unauthenticated RCE; Progress patched the flaws in July.

TantoSec's Marcio Almeida released a full exploit chain and tooling for the RadAsyncUpload control in Telerik UI for ASP.NET AJAX, turning a padding oracle (CVE-2026-13182) into unauthenticated RCE via an unguarded type-resolution flaw (CVE-2026-13181, CVSS 8.1). Exploitation requires a rendered RadAsyncUpload handler and an explicit non-default encryption key, and took roughly 127,000 oracle requests (about an hour) in lab testing. Versions 2010.1.309 through 2026.2.519 are affected; Progress fixed the chain in 2026.2.708 on July 8, 2026, and no in-the-wild exploitation has been confirmed. A separate RCE chain in RadPersistenceManager and RadDockLayout (CVE-2026-13185, -13186, -13190) was also patched but has no public exploit.

The Hacker News · 8d agoExploit / PoCCVE-2026-13181CVE-2026-13182CVE-2026-13183+5 CVEs1

Wordfence Argus Finds Unauthenticated Arbitrary File Upload Vulnerability in Gravity Forms

Wordfence finds an unauthenticated arbitrary file upload flaw in Gravity Forms (1M+ installs) that can lead to remote code execution.

On August 9, 2026, Wordfence's Argus scanner discovered an unauthenticated arbitrary file upload vulnerability in the WordPress plugin Gravity Forms, estimated at over one million active installations. Attackers can write files with attacker-selected extensions to a public temporary upload directory, potentially enabling remote code execution. The post does not mention a CVE identifier or observed exploitation.

Wordfence · 14d agoVulnerability

StopAndProtect Turns 2,000 Hacked WordPress Sites Into a Criminal Network

Check Point uncovered StopAndProtect, a cybercrime operation using ~2,000 hacked WordPress sites for ClickFix-driven malware delivery, data theft, surveillance, and ransomware.

Check Point Research identified the StopAndProtect operation in May 2026; it abuses close to 2,000 compromised WordPress sites, many running outdated software, to host malware stages, act as C2, and store stolen data. Infection starts with fake CAPTCHA ClickFix prompts that trick visitors into running a PowerShell command, followed by .NET downloaders deploying ransomware, SMB/USB worm, lockscreen, chat, and credential-stealing components. Rather than always encrypting, operators selectively exfiltrate file lists and specific files; researchers found 700+ stolen-data archives, roughly 31,000 screenshots, and 6,000+ unique victim IP addresses, including WhatsApp activity monitoring.

Security Affairs · 27d agoThreat actor in the wild

When a PNG Isn’t a PNG: WordPress Patches an Author-Level Imagick RCE

WordPress 7.0.4 patches an author-level RCE in how uploaded media is handed to ImageMagick.

WordPress maintenance release 7.0.4 includes a security fix that changes how uploaded media is passed to ImageMagick, closing a path that let a logged-in author turn a crafted image upload into remote code execution. Patchstack's analysis explains the flaw as a file-type handling issue where a PNG may not be treated as a PNG. The text does not mention a CVE ID or observed exploitation, but the flaw affects extremely widely deployed software.

Patchstack · Aug 12, 2026Vulnerability

CVE-2026-82426: Apache Storm Nimbus: Arbitrary File Read on Nimbus via Unvalidated Uploaded Jar Location

Apache Storm Nimbus 3.0.0 before 3.1.0 allows arbitrary server-side file read via unvalidated uploadedJarLocation in submitTopology calls.

CVE-2026-82426 (rated important) affects Apache Storm Nimbus (org.apache.storm:storm-server) versions 3.0.0 before 3.1.0. Nimbus accepted the uploadedJarLocation argument of submitTopology/submitTopologyWithOpts as a server-side path and opened it directly, without verifying the caller had actually uploaded that file via beginFileUpload. This enables arbitrary file read on the Nimbus host; the issue is fixed in version 3.1.0.

oss-security · 2d agoVulnerabilityCVE-2026-824261

Attackers Actively Exploiting Critical Vulnerability in WooCommerce Wholesale Lead Capture Plugin

Attackers are actively exploiting an unauthenticated arbitrary file upload flaw in the WooCommerce Wholesale Lead Capture plugin, enabling PHP backdoors and remote code execution.

A critical unauthenticated arbitrary file upload vulnerability in WooCommerce Wholesale Lead Capture, a premium WordPress plugin with an estimated 6,000 active installations, was publicly disclosed on February 20, 2026. Wordfence reports attackers are now actively exploiting the flaw to upload arbitrary files, including PHP backdoors, and achieve remote code execution. No CVE ID was cited in the report.

Wordfence · 1d agoExploit / PoC in the wild1

[20260810] - Core - Unrestricted uploads of SHTML files

Joomla fixed CVE-2026-73373, an unrestricted SHTML file upload flaw affecting CMS 1.0.0-5.4.7 and 6.0.0-6.1.2 that can enable code execution.

Joomla published security advisory 20260810 for CVE-2026-73373, an unrestricted upload of files with dangerous type in Joomla CMS. The default dangerous-file list omitted SHTML files, which could lead to code execution on servers that execute SHTML. Affected versions are 1.0.0-5.4.7 and 6.0.0-6.1.2; fixes ship in 5.4.8 and 6.1.3. The issue was reported by Valentin Lobstein (Chocapikk) on 2026-07-29.

Joomla Security Centre · 29d agoAdvisoryCVE-2026-73373

Attackers Actively Exploiting Critical Vulnerability in Elementor Pro Plugin

Attackers actively exploit a critical unauthenticated file upload flaw in Elementor Pro (6M+ installs), enabling remote code execution and site takeover.

Wordfence reports that attackers are actively exploiting a critical unauthenticated arbitrary file upload vulnerability in Elementor Pro, which it disclosed on August 19, 2026. The WordPress plugin has more than 6,000,000 active installations. Unauthenticated attackers can upload arbitrary files, including executable PHP files, leading to remote code execution and complete site takeover.

Wordfence · 13d agoExploit / PoC in the wild

ZDI-26-633: GIMP PSP File Parsing Integer Overflow Remote Code Execution Vulnerability

ZDI disclosed a CVSS 7.8 integer overflow in GIMP's PSP file parser that enables remote code execution when users open malicious files.

ZDI published advisory ZDI-26-633 for an integer overflow in GIMP's parsing of PSP image files. Remote attackers can execute arbitrary code, but exploitation requires user interaction such as opening a malicious file. ZDI assigned CVSS 7.8 and the issue is tracked as CVE-2026-4153.

ZDI Published Advisories · 7d agoAdvisoryCVE-2026-41531

Elementor Pro RCE Flaw Under Active Attack

A critical Elementor Pro Forms module flaw allowing unauthenticated file uploads is under active attack against widely used WordPress sites.

A critical vulnerability in Elementor Pro, a widely used WordPress page builder plugin, allowed unauthenticated attackers to upload arbitrary files through the plugin's Forms module. The SOCRadar report indicates the flaw is being actively exploited in the wild. No CVE identifier was provided in the available text.

SOCRadar · 11d agoExploit / PoC in the wild

CVE-2026-73334: Apache Parquet Hadoop: File-controlled KMS URL is forwarded to pluggable KmsClient that skips host validation

Apache Parquet Hadoop CVE-2026-73334: a file-controlled KMS URL reaches pluggable KmsClients without host validation in parquet-java 1.12 through 1.18.0.

Apache disclosed CVE-2026-73334, a moderate issue in the org.apache.parquet.crypto.keytools package of parquet-java, versions 1.12 through 1.18.0. The package implements envelope encryption that wraps data keys via a Key Management Service. A KMS URL controlled by the Parquet file is forwarded to a pluggable KmsClient that skips host validation, which could allow crafted files to redirect KMS requests.

oss-security · 7d agoVulnerabilityCVE-2026-733341

ZDI-26-656: PAPPL Job Processing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-26-656: Unauthenticated heap-based buffer overflow in PAPPL job processing allows remote code execution, rated CVSS 9.8.

The Zero Day Initiative published advisory ZDI-26-656 for PAPPL, the open-source printer application framework. A heap-based buffer overflow in job processing allows remote attackers to execute arbitrary code with no authentication required. ZDI assigned a CVSS 9.8 rating. No CVE identifier was listed in the advisory text.

ZDI Published Advisories · 6d agoAdvisory 2 sources

VU#308749: Remote Code Execution and Arbitrary File Read Vulnerabilities in Kaltura Servers

Insecure deserialization in Kaltura's legacy HTML5 Player V2 (mwEmbed) allows arbitrary file read and remote code execution; Player V7 is unaffected.

CERT/CC issued VU#308749 for two flaws in Kaltura's HTML5 Player V2 library (mwEmbed/html5lib), both caused by the same insecure deserialization bug. The flaws enable arbitrary file read and remote code execution via the exposed mwEmbedLoader.php endpoint. Affected versions include html5lib v2.45, v2.103 and earlier, and other v2.x releases; the currently supported Player V7 is unaffected. No evidence of exploitation was cited.

CERT/CC Vulnerability Notes · 21d agoVulnerability

[webapps] flyto-core 2.26.7 - Arbitrary File Write

flyto-core 2.26.7 has an arbitrary file write vulnerability with a public proof-of-concept exploit on Exploit-DB.

Exploit-DB listing 52655 discloses an arbitrary file write vulnerability in flyto-core version 2.26.7. A proof-of-concept exploit is publicly available. The listing provides no CVE identifier and no indication of active exploitation; arbitrary file writes can potentially enable code execution depending on write locations.

Exploit-DB · 29d agoExploit / PoC

[webapps] Planyo_Online_Reservation_System 3.0 - Arbitrary File Read via SSRF

Exploit demonstrates arbitrary file read via SSRF in Planyo Online Reservation System 3.0.

Exploit-DB entry 52636 documents an arbitrary file read vulnerability in Planyo Online Reservation System version 3.0, reachable through a server-side request forgery condition. The public PoC shows how the web application can be manipulated to fetch and disclose local files. Sites running the vulnerable version could expose sensitive server files.

Exploit-DB · Aug 11, 2026Exploit / PoC

Survey of filesystem MCP servers: how the "sandboxed filesystem" boundary is enforced (one breach, four defended-by-design)

Survey finds one filesystem MCP server vulnerable to a symlink-based sandbox escape while four others are defended by design.

A survey of five filesystem MCP servers assessed how each enforces its path-confinement boundary against symlink escapes in recursive directory walkers. The iceener/files-stdio-mcp-server is vulnerable to a read-side sandbox escape. The other four are defended by design or make no confinement claim. The author describes the vulnerability class as small but real.

oss-security · 6d agoVulnerability

PAPERMILL Malware Campaign Abuses Signed Notepad++ to Deliver VenomRAT to Windows Usersnew

JUMPSEC tracks PAPERMILL, a China-nexus phishing campaign using a signed Notepad++ binary, libcurl.dll sideloading, and Donut loaders to deploy VenomRAT against Indian tax-audit targets.

PAPERMILL delivers ISO disk images via tax-audit phishing emails that passed SPF, DKIM, and DMARC, containing a renamed Authenticode-signed Notepad++ executable and a malicious libcurl.dll that proxies curl functions while executing loader logic in DllMain. The chain uses Mark-of-the-Web bypasses, anti-sandbox sleeps, UAC elevation prompts, Registry persistence, and a Donut shellcode loader to reflectively load .NET VenomRAT v6.0.3 with HVNC and credential-stealing capability, with C2 at 154.36.188.201:4449. JUMPSEC assesses the campaign as China-nexus, financially motivated, and Silver Fox-adjacent rather than definitively Silver Fox-operated.

GBHackers · 43m agoMalware in the wild

ZDI-26-636: Oracle Outside In Technology PostScript File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI disclosed a heap-based buffer overflow in Oracle Outside In Technology's PostScript parsing (CVE-2026-60412) enabling user-triggered remote code execution.

Zero Day Initiative published ZDI-26-636, a CVSS 7.8 heap-based buffer overflow in PostScript file parsing within Oracle Outside In Technology. Remote attackers can execute arbitrary code when the target opens a malicious file or visits a malicious page, making user interaction a requirement. The vulnerability is tracked as CVE-2026-60412. The advisory reports no exploitation.

ZDI Published Advisories · 7d agoVulnerability 4 sourcesCVE-2026-604121

ZDI-26-612: (0Day) pdfforge PDF Architect PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI published ZDI-26-612, an unpatched out-of-bounds write in pdfforge PDF Architect PDF parsing enabling remote code execution (CVSS 7.8).

The Zero Day Initiative disclosed ZDI-26-612, an out-of-bounds write vulnerability in pdfforge PDF Architect's PDF file parsing. Successful exploitation allows remote code execution on affected installations. User interaction is required, as the target must visit a malicious page or open a malicious file; ZDI assigned a CVSS score of 7.8 and lists the flaw as a 0day.

ZDI Published Advisories · 16d agoAdvisory

ZDI-26-613: (0Day) pdfforge PDF Architect PDF File Parsing Memory Corruption Remote Code Execution Vulnerability

ZDI published ZDI-26-613, an unpatched memory corruption flaw in pdfforge PDF Architect PDF parsing enabling remote code execution (CVSS 7.8).

The Zero Day Initiative disclosed ZDI-26-613, a memory corruption vulnerability in pdfforge PDF Architect's PDF file parsing that allows remote code execution on affected installations. User interaction is required, meaning the target must visit a malicious page or open a malicious file. ZDI assigned a CVSS score of 7.8 and classifies the issue as a 0day.

ZDI Published Advisories · 16d agoAdvisory

ZDI-26-587: Ashlar-Vellum Cobalt VS File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI advisory ZDI-26-587 details a heap-based buffer overflow RCE (CVE-2026-19781, CVSS 7.8) in Ashlar-Vellum Cobalt VS file parsing, requiring user interaction.

The Zero Day Initiative released advisory ZDI-26-587 covering a heap-based buffer overflow in Ashlar-Vellum Cobalt's VS file parsing. A remote attacker can execute arbitrary code when the target opens a malicious file or visits a crafted page. ZDI rated the vulnerability CVSS 7.8 and assigned CVE-2026-19781.

ZDI Published Advisories · 23d agoAdvisoryCVE-2026-19781

Flextype v1.0.0-alpha.3 Stored Filesystem Shortcode Allows Arbitrary File Read

Flextype CMS v1.0.0-alpha.3's stored filesystem shortcode allows arbitrary file reads because paths are not restricted to an approved directory.

Flextype CMS v1.0.0-alpha.3 automatically processes stored entry fields through its shortcode parser when global shortcode processing is enabled. The built-in filesystem shortcode accepts a file path and returns the contents of the specified file without restricting the path to an approved application directory. This allows arbitrary file reads from the server. Ron E disclosed the issue on the Full Disclosure mailing list on September 3, 2026.

Full Disclosure · 12d agoVulnerability 8 sources

[webapps] Nodemailer 9.0.0 - File Read/ SSRF

A public proof-of-concept demonstrates arbitrary file read and SSRF in Nodemailer 9.0.0.

Exploit-DB entry 52654 contains a webapps proof-of-concept for Nodemailer 9.0.0 demonstrating both arbitrary file read and server-side request forgery. Nodemailer is a widely used Node.js email-sending library, so affected deployments could expose local files or internal services. The listing does not include a CVE identifier or evidence of in-the-wild exploitation.

Exploit-DB · 29d agoExploit / PoC