PT-2026-56512 · Pypi · Mistune
CVSS v3.1
6.1
Medium
| Vector | AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Name of the Vulnerable Software and Affected Versions
Mistune versions prior to 3.3.0
Description
The
safe url filter in src/mistune/renderers/html.py fails to block several legacy or chained URI schemes. While it restricts javascript:, vbscript:, file:, and data:, it allows schemes such as feed:, view-source:, jar:, livescript:, mocha:, ms-its:, mk:, and res: to be included in rendered href and src attributes. This could allow the execution of scripts in affected user agents.Recommendations
Update to version 3.3.0.
Exploit
Fix
Incomplete List of Disallowed Inputs
XSS
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Related Identifiers
Affected Products
Mistune