6.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2025-54384

CVE-2025-54384: 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

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-54384

CVE-2025-54384:

6.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
ckan	pip	>= 2.11.0, < 2.11.4	2.11.4
ckan	pip	< 2.10.9	2.10.9

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The security advisory points to a stored XSS vulnerability in CKAN's markdown processing. The provided commit 112affffa74b14fc97c54abcf18315df97114917 directly addresses this issue. The analysis of the patch reveals that two functions, markdown_extract and render_markdown in ckan/lib/helpers.py, were using a regular expression (RE_MD_HTML_TAGS) to strip HTML tags from user-provided content after it was processed by the markdown library. This regex was insufficient and could be bypassed, allowing for the injection of malicious scripts.

The patch replaces the vulnerable regex-based sanitization with calls to bleach.clean(), a library specifically designed for robust HTML sanitization. The changes clearly show the vulnerable code being replaced in both functions. Therefore, markdown_extract and render_markdown are the identified vulnerable functions that would be involved in a runtime trace when this XSS vulnerability is triggered.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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