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5 stories in the last 30d

WebPros security advisory (AV26-908)

Canada's Cyber Centre relays WebPros advisories for SQL injection (CVE-2026-67401) in cPanel and two ConfigServer Firewall flaws.

The Canadian Centre for Cyber Security published advisory AV26-908 covering vulnerabilities in WebPros products, including cPanel & WHM and ConfigServer Security & Firewall (CSF). Affected cPanel builds include versions prior to 11.110.0.143, 11.134.0.55, 11.136.0.39, 11.138.0.4 and WP2 11.138.1.9, while CSF versions 14.00-16.29 (CVE-2026-65638) and 2.15-16.29 (CVE-2026-65639) are also affected. CVE-2026-67401 describes SQL injection in cPanel's EmailTrack functionality. Users and administrators are encouraged to review the advisories and apply available updates.

Canadian Centre for Cyber Securityupdated · 5d agofirst · 5d agoAdvisory 3 sourcesCVE-2026-65638CVE-2026-65639CVE-2026-67401

WebPros security advisory (AV26-866)

Canada's Cyber Centre relays a WebPros advisory for CVE-2026-67394, a Plesk privilege escalation flaw to root, fixed in 18.0.79.9 and 18.0.80.5.

The Canadian Centre for Cyber Security issued alert AV26-866 relaying WebPros' security advisory for Plesk. CVE-2026-67394 allows privilege escalation to root and affects Plesk versions prior to 18.0.79.9 and 18.0.80.5. Administrators are encouraged to review the advisory and apply the available updates.

WebPros security advisory (AV26-854)

Canadian Centre for Cyber Security relayed a WebPros advisory covering Plesk vulnerabilities CVE-2026-65642 and CVE-2026-65647 with fixed versions released.

WebPros released a security advisory affecting Plesk versions prior to 18.0.79.8 and 18.0.80.4, Plesk Migrator prior to 2.36.0, and Plesk Site Import prior to 1.12.1. The listed vulnerabilities are CVE-2026-65642 in Plesk's database management interface and CVE-2026-65647 in the Site Import and Migrator extensions. The Canadian Centre for Cyber Security (AV26-854) encourages users and administrators to apply the available updates.

WebPros security advisory (AV26-861)

Canada's Cyber Centre relayed a cPanel advisory for CVE-2026-65643, a domain parking vulnerability fixed in multiple cPanel/WHM releases; admins should update.

Canada's Cyber Centre issued advisory AV26-861 relaying cPanel's disclosure of CVE-2026-65643, a vulnerability in cPanel's Domain Parking functionality. Affected cPanel & WebHost Manager (WHM) builds include all releases prior to 11.110.0.141, 11.134.0.53, 11.136.0.37, 11.138.0.2, and WP2 11.138.1.7. Administrators are urged to review vendor guidance and apply updates. No exploitation details were provided in the advisory.

Critical cPanel Flaw Could Let One Hosting Customer Take Root Control of a Whole Server

cPanel patched critical flaw CVE-2026-65643 letting authenticated hosting customers with addon or parked domain rights execute code as root and fully compromise servers.

cPanel issued patches on August 27, 2026 for CVE-2026-65643, a flaw in domain parking and addon domain functionality in cPanel & WHM that lets an authenticated account holder create arbitrary files and execute code as root, yielding full server control. Fixed builds cover the 11.110, 11.134, 11.136 and 11.138 branches, including WP Squared 11.138.1.7, and auto-update servers receive the fix automatically. No CVSS score, published CVE record, or evidence of exploitation has appeared, and the flaw is absent from CISA's KEV catalog as of August 27. The article also recaps related 2026 cPanel-ecosystem issues, including KEV-listed LiteSpeed plugin flaws and the in-the-wild-exploited Phusion Passenger problem.