Vulnerability · Published Nov 25, 2025 · Assigned by GitHub_M

CVE-2025-65961Contao is vulnerable to cross-site scripting in templates

Low 3.3

In plain English

A low-severity security flaw in contao from contao. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.3Low

Exploit odds (30 days)0.2%top 92.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Contao is an Open Source CMS. From version 4.0.0 to before 4.13.57, before 5.3.42, and before 5.6.5, it is possible to inject code into the template output that will be executed in the browser in the front end and back end. This issue has been patched in versions 4.13.57, 5.3.42, and 5.6.5. A workaround for this issue involves not using the affected templates or patch them manually.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	contao/core-bundle	4.13.57	GHSA-68q5-78xp-cwwc
Packagist	contao/core-bundle	5.3.42	GHSA-68q5-78xp-cwwc
Packagist	contao/core-bundle	5.6.5	GHSA-68q5-78xp-cwwc

Affected products (as reported)

Vendor	Product	Versions
contao	contao	>= 4.0.0, < 4.13.57>= 5.0.0-RC1, < 5.3.42>= 5.4.0-RC1, < 5.6.5

Weakness: CWE-87 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

References

https://github.com/contao/contao/security/advisories/GHSA-68q5-78xp-cwwc x_refsource_CONFIRM
https://contao.org/en/security-advisories/cross-site-scripting-in-templates x_refsource_MISC