CKAN vulnerable to stored XSS in resource description
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
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | ckan | >= 2.11.0, < 2.11.4, < 2.10.9 | 2.11.4, 2.10.9 |
References
- https://github.com/ckan/ckan/security/advisories/GHSA-2r4h-8jxv-w2j8
- https://nvd.nist.gov/vuln/detail/CVE-2025-54384
- https://github.com/ckan/ckan/commit/112affffa74b14fc97c54abcf18315df97114917
- https://github.com/ckan/ckan/commit/6d0065f2fc7e2682196d125275af34b93e9e554e
- https://github.com/ckan/ckan
- https://github.com/ckan/ckan/releases/tag/ckan-2.10.9
- https://github.com/ckan/ckan/releases/tag/ckan-2.11.4
- https://pypi.org/project/ckan
- https://github.com/advisories/GHSA-2r4h-8jxv-w2j8
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Python (PyPI)
- Package
ckan- Disclosed
- 29.10.2025
- Updated
- 11.10.2026 13:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1247 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-2r4h-8jxv-w2j8 - CC BY 4.0
Vulnerability history: ckan
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 15
- First → latest
- 12.2021 04.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 3
- Medium 11
Disclosures per year
- 2021: 1
- 2022: 1
- 2023: 2
- 2024: 4
- 2025: 3
- 2026: 4
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