PYSEC-2026-1247

vendorUSosv

CKAN vulnerable to stored XSS in resource description

view advisory published 2026-07-07Licence: CC-BY-4.0

### 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

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2025-54384US——
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 suf…
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