CKAN vulnerable to stored XSS in resource description
Date: 2025-10
Affected: pip/ckan, pip/ckan
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2025-54384
CWE: CWE-79
CVSS: 6.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N)

### Impact 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. ### Patches This vulnerability has been fixed in CKAN 2.10.9 and 2.11.4


Mitigations:

Architectural layers (MAESTRO):