Affected versions: ≥ 3.6.4 and < 3.6.5
Full advisory: our disclosure post
CVE-2026-77993HighPublished 17 August 2026
Page Builder CK (com_pagebuilderck) 3.6.4 - SQL Injection in the styles model, backend vector still open
Page Builder CK 3.6.4 is still affected by CVE-2026-74254, the SQL injection in the styles handling, because that release only fixed half of it. The CNA records the whole issue as affecting versions 1.0.0 to 3.6.4 and scores it CVSS 4.0 9.3 Critical: 3.6.4 fixed the front-end vector, and 3.6.5 fixed the administrator one. On 3.6.4 specifically the remaining route is the administrator path, where the sanitising call discarded its own return value so the uncast style identifiers still reached the query, and reaching it needs an authenticated account with content editing rights on the component plus a valid session token. That is why this rule is scored lower than the 3.6.3 rule even though both carry the same CVE. Update to 3.6.5 or later, which applies the sanitising properly. Until you can update, restrict edit permissions on com_pagebuilderck to trusted users only.
Affected versions: ≥ 3.6.4 and < 3.6.5
Official record: cve.org · NVD
Every connected Joomla site is checked against these rules on each audit, and flagged if it runs an affected version.
Affected extensions and versions
Page Builder CK - Page Builder CK (com_pagebuilderck) below 3.6.5 - Unauthenticated SQL Injection (CVE-2026-77994, CVSS 9.3 Critical) and Reflected XSS
Page Builder CK versions 1.0.0 to 3.6.4 are affected by two unauthenticated vulnerabilities published by the Joomla CNA on 24 August 2026. CVE-2026-77994 (CVSS 9.3 Critical, CWE-89) is a second order SQL injection in the loadStyles method of the frontend page model. The CVSS vector is AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H, so no login, no CSRF token and no user interaction are required: an anonymous visitor can read and modify the entire Joomla database, including the password hashes in #__users. CVE-2026-77993 (CVSS 5.3 Medium, CWE-79) is a reflected cross-site scripting flaw via the iscontenttype parameter. It is also unauthenticated, but needs the victim to follow a crafted link (UI:P). Both are fixed in Page Builder CK 3.6.5. Both were reported by Ala Arfaoui. Update to 3.6.5 or later. Page Builder CK has shipped a run of security releases across the 3.6.x line, so an earlier 3.6.x build is not a safe ceiling. If you cannot update straight away, block anonymous requests to index.php?option=com_pagebuilderck at your web server or WAF. Because the SQL injection is unauthenticated and reachable on the front end, treat any database contents as potentially read and rotate administrator passwords after updating.
Affected versions: ≥ 3.6.0 and < 3.6.5
Full advisory: www.cve.org
Our disclosure post
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Rules current as of 14 September 2026.