CKAN up to 2.10.8/2.11.3 helpers.markdown_extract cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in CKAN up to 2.10.8/2.11.3. Affected by this vulnerability is the function helpers.markdown_extract. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2025-54384. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in CKAN up to 2.10.8/2.11.3 and classified as problematic. Affected by this issue is the function helpers.markdown_extract. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

CKAN is an open-source DMS (data management system) for powering data hubs and data portals. Prior to 2.10.9 and 2.11.4, the helpers.markdown_extract() function did not perform sufficient sanitization of input data before wrapping in an HTML literal element. This helper is used to render user-provided data on dataset, resource, organization or group pages (plus any page provided by an extension that used that helper function), leading to a potential XSS vector. This vulnerability has been fixed in CKAN 2.10.9 and 2.11.4.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-54384 since 07/21/2025. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 2.10.9 or 2.11.4 eliminates this vulnerability. Applying the patch 6d0065f2fc7e2682196d125275af34b93e9e554e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• CKAN

Version

• 2.10.0
• 2.10.1
• 2.10.2
• 2.10.3
• 2.10.4
• 2.10.5
• 2.10.6
• 2.10.7
• 2.10.8
• 2.11.0
• 2.11.1
• 2.11.2
• 2.11.3

License

• open-source

Website

• Product: https://github.com/ckan/ckan/

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