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PHP Webshell Campaign Targets WordPress Through Critical WooCommerce Plugin Bug

Wordfence blocked over 100,000 exploitation attempts against CVE-2026-27540 in WooCommerce Wholesale Lead Capture, letting attackers upload PHP webshells to WordPress sites.

Wordfence reported more than 100,000 blocked exploitation attempts against CVE-2026-27540 in the WooCommerce Wholesale Lead Capture plugin (roughly 6,000 active installs), which was disclosed and patched on February 20 in version 2.0.3.2. The unauthenticated AJAX handler wwlc_file_upload_handler reads permitted file extensions from the attacker-controlled request, enabling arbitrary file upload of PHP files such as shell.php that report host details and serve further upload forms. Attack activity peaked between June 4 and June 17, 2026, with additional waves on July 1 and August 30. Wordfence rates the flaw CVSS 9.8, while Patchstack's CVE record lists 9.0.

Infosecurity Magazine · 7h agoExploit / PoC in the wild 6 sourcesCVE-2026-27540

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 · 7h agofirst · 1d agoExploit / PoC in the wild 6 sourcesCVE-2026-275402· 1 read

Hackers Actively Exploit Critical WooCommerce Plugin Vulnerability to Upload PHP Backdoors

Attackers actively exploit CVE-2026-27540 (CVSS 9.8) in WooCommerce Wholesale Lead Capture plugin to upload PHP webshells; patch shipped in version 2.0.3.2.

CVE-2026-27540 (CVSS 9.8) in the WooCommerce Wholesale Lead Capture plugin affects versions 2.0.3.1 and earlier across roughly 6,000 active installations. The unauthenticated AJAX handler wwlc_file_upload_handler trusts a client-supplied file_settings allowlist, letting attackers upload shell.php for remote code execution. Wordfence has blocked more than 100,000 exploit attempts since disclosure, with spikes in June, July, and August 2026. The vendor fixed the flaw in version 2.0.3.2.

GBHackersupdated · 7h agofirst · 1d agoExploit / PoC in the wild 6 sourcesCVE-2026-27540

Hackers Exploit WooCommerce Plugin Bug to Take Over WordPress Sites Without Login

Attackers exploit CVE-2026-27540 (CVSS 9.8) in WooCommerce Wholesale Lead Capture to upload PHP webshells without authentication.

Attackers are actively exploiting CVE-2026-27540, a CVSS 9.8 unauthenticated file upload flaw in the WooCommerce Wholesale Lead Capture plugin (versions through 2.0.3.1, ~6,000 active sites). The plugin trusts a client-supplied list of allowed file types, letting attackers upload PHP webshells (shell.php) via the admin-ajax.php handler without any WordPress account. Wordfence blocked more than 100,000 exploit attempts, with activity bursts June 4-17, July 1, and August 30; a patch is available in version 2.0.3.2.

Cyber Security Newsupdated · 7h agofirst · 1d agoExploit / PoC in the wild 6 sourcesCVE-2026-27540

In Other News: InjectEave Attack, SIM Swapper Sentenced, Glasswing Findings Review

SecurityWeek weekly roundup covers exploited WordPress Super Forms flaw CVE-2026-14894, a $10M bounty on an Iranian cyber official, InjectEave attacks, and more.

SecurityWeek's weekly roundup aggregates short items across the threat landscape, including Microsoft's report of invisible Unicode tag characters used in financial phishing lures at up to 2.37 million messages per day, and active exploitation of critical WordPress Super Forms plugin flaw CVE-2026-14894 to deploy PHP webshells. Policy items include a $10 million US bounty for IRGC-CEC Cyber Operations Command lead Amir Yaryab, a 16-month prison sentence for ex-AT&T employee Kenneth Carter over SIM swaps with nearly $600,000 in intended losses, and the US arraignment of Russian Sergei Anatolyevich Filimonov over credential harvesting. Technical items include InjectEave electromagnetic side-channel attacks tested on 11 devices, an FBI warning on OAuth consent phishing, and VulnCheck's finding that only 202 of 26,153 Anthropic Project Glasswing findings were fixed.

SecurityWeek · 5d agoIndustry in the wildCVE-2026-148942

North Korean Lazarus Group Uses Windows Zero

Check Point links Lazarus Group's Operation Dream Job to a new Windows zero-day, CVE-2026-68820, targeting defense workers with fake Lockheed Martin job offers.

Check Point Research documented a new wave of Operation Dream Job, a North Korean Lazarus Group campaign targeting defense and aerospace professionals in France, Germany, Brazil, and India with fake Lockheed Martin job offers. The attacks chain a previously unknown Windows privilege escalation flaw in AFD.sys, CVE-2026-68820, which Microsoft patched on August 11, 2026, to deploy the MISTPEN downloader, ForestTiger backdoor, and updated FudModule 3.1 kernel rootkit. Check Point also discovered a new Troy backdoor DLL with 17 operator commands and a RelayShell PHP webshell deployed on compromised Roundcube and WordPress servers used as command relays, some infected via CVE-2025-49113 or leaked credentials. Defenders are urged to apply the August 2026 Patch Tuesday update and review Check Point's indicators of compromise.

Security Affairs · Aug 13, 2026Threat actor in the wildCVE-2026-68820CVE-2025-491131