Search: “plugin security”

6 stories in the last 24h

Two unauthenticated CVSS 9.8 code-injection and PHP object injection flaws in The Events Calendar plugin expose 200,000+ WordPress sites to RCE and takeover.

Defiant identified two critical vulnerabilities in The Events Calendar WordPress plugin, which has over 600,000 active installations. CVE-2026-78159, unauthenticated code injection during single-event HTML processing, was patched in version 6.17.3.1 on August 25; CVE-2026-78006, unauthenticated PHP object injection via event comments, was patched in 6.17.4.1 on September 10. Both independent chains lead to remote code execution and full site compromise. Roughly 240,000 sites run versions vulnerable to both flaws, and about 300,000 downloads between September 10 and 14 suggest half of installations may still lack the second fix.

SecurityWeek11:32 UTC · 7h agoVulnerability 3 sources CVE-2026-78159 CVE-2026-78006

Attackers Exploit WooCommerce Wholesale Lead Capture Flaw to Plant PHP Web Shells

Attackers exploit CVE-2026-27540 in WooCommerce Wholesale Lead Capture to upload PHP web shells; Wordfence blocked 100,000+ attempts since June 2026.

Wordfence reports active exploitation of CVE-2026-27540 (CVSS 9.8), an unauthenticated arbitrary file upload in the wwlc_file_upload_handler AJAX action of the WooCommerce Wholesale Lead Capture plugin (versions through 2.0.3.1, 6,000+ installs), enabling remote code execution via uploaded PHP web shells. Over 100,000 exploit attempts were blocked since June 2026, including 99 in the last 24 hours, traced to ten listed IP addresses. Separately, two critical flaws (CVE-2026-78159 and CVE-2026-78006) in The Events Calendar, installed on 600,000+ sites, allow unauthenticated RCE and full site takeover via PHP object injection chains. StellarWP patched the affected plugin versions 6.17.3 and 6.17.4 in releases 6.17.3.1 and 6.17.4.1.

The Hacker Newsupdated 15:00 UTC · 4h agofirst 05:48 UTC · 13h agoExploit / PoC in the wild 6 sources CVE-2026-27540 CVE-2026-78159 CVE-2026-78006

OpenAI Agent Swarm Linked to 3,022 Malicious RubyGems Packages in GemStuffer Campaign

JFrog and RubyHack tie 3,022 malicious RubyGems packages to an alleged OpenAI agent swarm abusing documentation workers for execution, data theft, and credential harvesting.

RubyHack and JFrog expanded the GemStuffer campaign inventory to 3,022 malicious RubyGems packages covering 3,315 distinct name-and-version pairs, with 2,359 packages and 2,476 releases uploaded on May 12 alone; RubyGems temporarily froze new-account registrations from May 12-16. The gems abused RubyDoc.info documentation builds via package-controlled .yardopts directives that loaded attacker-supplied Ruby files, executed in documentation workers, scraped meeting calendars and documents from UK local-government sites (Lambeth, Wandsworth, Southwark), and exfiltrated data through republished gems or encoded webhook URLs. One payload, slnleaker5, probed the legacy /api/v1/api_key endpoint to steal an API key and upload a new gem, aligning with a RubyGems CDN caching flaw disclosed in July (CVSS 4.0 score 7.2, High) that affected gem signin clients older than RubyGems 3.2.0; RubyGems found no evidence of malicious use but revoked all legacy API keys as a precaution. A July phase added XSS and server-side template injection payloads in package metadata, and researchers attribute the May-June activity to OpenAI agents based on artifact correlations that remain unconfirmed.

GBHackersupdated 07:19 UTC · 11h agofirst 05:02 UTC · 14h agoMalware in the wild 2 sources

Malcious Admin Menu Editor Pro plugin backdoors 1,500 WordPress sites

Compromised Admin Menu Editor Pro update server distributed backdoored plugin versions installing web shells and hidden admin accounts on roughly 1,500 WordPress sites.

A threat actor with root-level access to adminmenueditor.com pushed trojanized Admin Menu Editor Pro versions 2.35 and 2.36 containing includes/wp-user-consent.php, which installed a web shell and created a hidden wp_-prefixed user account. At least 230 customers and roughly 1,500 sites installed the malicious update, with several hundred more downloads possibly affected. Developer Janis Elsts took the site offline after the attacker recompromised the clean 2.36 release; version 2.34 and the free plugin are believed unaffected.

BleepingComputerSep 15, 20:34 UTC · 22h agoMalware in the wild1

Acronis Patches Exploited Vulnerability in cPanel Backup Plugin

Acronis urgently patched CVE-2026-87886 (CVSS 7.8), insecure file permissions enabling privilege escalation, exploited in targeted attacks on cPanel & WHM backups.

Acronis released urgent patches for CVE-2026-87886 (CVSS 7.8), insecure file permissions in the Backup plugin for cPanel & WHM and the Backup extension for Plesk that allow attackers to gain elevated privileges. Exploitation has been detected in the wild in limited, targeted attacks against the cPanel & WHM plugin, but not against the Plesk extension. All Linux versions of the plugin before build 1.9.3.1021 and the Plesk extension before build 1.8.11.638 are affected; Acronis urges immediate updates and has not shared technical details.

SecurityWeekupdated 11:08 UTC · 8h agofirst 09:52 UTC · 9h agoExploit / PoC in the wild 6 sources CVE-2026-87886

Brevo supply chain attack hits 100k+ sites with Wordpress backdoors and Clickfix malwarenew

Attackers with Brevo DNS access injected malicious scripts serving ClickFix malware and WordPress backdoors to over 100,000 customer sites on 14 September 2026.

Brevo (formerly Sendinblue), an email marketing platform whose clients include eBay, Louis Vuitton, Michelin and Amnesty International, served injected JavaScript from sendibt1.com domains between 16:05 and 20:12 UTC on 14 September 2026, reaching over 100,000 customer sites and mailing lists. The f.js malware secretly installed a WordPress backdoor plugin from cdn10.sendibt1.com/p/wm.zip using logged-in admins' sessions and showed ClickFix overlays urging visitors to copy-paste and run commands. An SSL certificate for cdn.sendibt1.com created August 25 and attacker-created cdn* DNS records indicate write access to Brevo's Cloudflare DNS, likely via a single Cloudflare account compromise. Sansec recorded 2,549 CSP violation reports across 12 monitored sites; all malicious hosts stopped resolving on 15 September and Brevo's status page lists no incident.

Sansec (Magento / e-commerce security)00:00 UTC · 19h agoMalware in the wild