What is the CVSS score of CVE-2025-65961?

CVE-2025-65961 has a CVSS 3.1 base score of 3.3 (Low). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Contao are affected by CVE-2025-65961?

CVE-2025-65961 is a low-severity vulnerability in Contao (CVSS 3.3). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation.. A patch is available.

How to fix or mitigate CVE-2025-65961?

During next maintenance window: Apply vendor patches when convenient. Monitor vendor channels for updates.

Contao CVE-2025-65961

LOW

Improper Neutralization of Alternate XSS Syntax (CWE-87)

2025-11-25 security-advisories@github.com

Code Injection Contao

3.3

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

3.3 LOW

AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 19:23 vuln.today

CVE Published

Nov 25, 2025 - 19:15 nvd

LOW 3.3

DescriptionGitHub Advisory

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.

AnalysisAI

Contao is an Open Source CMS. Rated low severity (CVSS 3.3), this vulnerability is remotely exploitable. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-87. 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 products include: Contao. Version information: version 4.0.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.