Contao: Cross-site scripting in the comments bundle

An unauthenticated front end visitor can post a comment containing a XSS injection. The victim is any back end user who opens the Comments module, and moderation makes exposure certain rather than preventing it. No Content-Security-Policy header is sent on the Contao back end, so nothing mitigate...

GHSA-628F-V4F6-P37R Contao: Cross-site scripting in the comments bundle

An unauthenticated front end visitor can post a comment containing a XSS injection. The victim is any back end user who opens the Comments module, and moderation makes exposure certain rather than preventing it. No Content-Security-Policy header is sent on the Contao back end, so nothing mitigate...

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 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...

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 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...

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...

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...

CVE-2026-107845: Improper Neutralization of Input During Web Page Generation

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...

Cross-site scripting in the comments bundle (see GHSA-628f-v4f6-p37r)

More info at https://contao.org/en/security-advisories/cross-site-scripting-in-the-comments-bundle...

Cross-site scripting in the comments bundle (see GHSA-628f-v4f6-p37r)

More info at https://contao.org/en/security-advisories/cross-site-scripting-in-the-comments-bundle...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization due to improper filtering protected news archives. An attacker can access sensitive information by retrieving protected news items that are unintentionally included in the public RSS feed. Workaround This...

CSS Injection

contao/comments-bundle is vulnerable to CSS Injection. The vulnerability is due to insufficient input validation and sanitization within the BBCode parsing mechanism in Comments.php, allowing attackers to inject CSS styles via comments...