CVE-2025-65961
BaseFortify
Publication date: 2025-11-25
Last updated on: 2025-12-03
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| contao | contao | From 4.0.0 (inc) to 4.13.57 (exc) |
| contao | contao | From 5.0.0 (inc) to 5.3.42 (exc) |
| contao | contao | From 5.4.0 (inc) to 5.6.5 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
| CWE-87 | The product does not neutralize or incorrectly neutralizes user-controlled input for alternate script syntax. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in Contao CMS allows an attacker to inject code into the template output, which will then be executed in the browser on both the front end and back end. This means malicious code can run within the context of the website, potentially leading to unauthorized actions or data exposure. The issue affects versions from 4.0.0 up to but not including 4.13.57, 5.3.42, and 5.6.5, where it has been patched.
How can this vulnerability impact me? :
The vulnerability can lead to the execution of injected code in users' browsers, which may result in unauthorized access, data leakage, or manipulation of website content. Since the code runs in the context of the website, it could compromise both front end and back end operations, potentially affecting the integrity and confidentiality of the system.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, immediately update Contao to version 4.13.57, 5.3.42, or 5.6.5 or later where the issue is patched. As a workaround, avoid using the affected templates or patch them manually to prevent code injection in the template output.