CVE-2026-107845

Contao is an Open Source CMS. From version 4.0.0 until 5.3.50 and 5.7.12, an unauthenticated visitor can submit a comment whose email or website metadata is rendered without sufficient attribute and URL encoding by listComments in comments-bundle/contao/dca/tlcomments.php. When a backend user ope...

CVE-2026-107845

The Contao Open Source CMS is vulnerable to Cross-site scripting (XSS) in the comments bundle (versions 4.0.0 through 5.3.50 and 5.7.12). The root cause is insufficient attribute and URL encoding of email or website metadata within the listComments() function in comments-bundle/contao/dca/tl_comm...

EUVD-2026-95975

Contao is an Open Source CMS. From version 4.0.0 until 5.3.50 and 5.7.12, an unauthenticated visitor can submit a comment whose email or website metadata is rendered without sufficient attribute and URL encoding by listComments in comments-bundle/contao/dca/tlcomments.php. When a backend user ope...

CVE-2026-107845 Contao: Cross-site scripting in the comments bundle

Contao is an Open Source CMS. From version 4.0.0 until 5.3.50 and 5.7.12, an unauthenticated visitor can submit a comment whose email or website metadata is rendered without sufficient attribute and URL encoding by listComments in comments-bundle/contao/dca/tlcomments.php. When a backend user ope...