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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 · 14h agoExploit / PoC in the wild 6 sourcesCVE-2026-27540

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 · 14h agofirst · 1d agoExploit / PoC in the wild 6 sourcesCVE-2026-27540

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 · 14h agofirst · 23h agoExploit / PoC in the wild 6 sourcesCVE-2026-27540CVE-2026-78159CVE-2026-78006

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 · 14h agofirst · 1d agoExploit / PoC in the wild 6 sourcesCVE-2026-275402· 1 read

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

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 · 14h agofirst · 1d agoExploit / PoC in the wild 6 sourcesCVE-2026-27540