VULNERABILITY INTELLIGENCE
CVE-2026-40472
CVSS score9.9 CRITICAL
EPSS probability0.30%
CISA KEVNot currently listed
Published2026-04-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Description
In hackage-server, user-controlled metadata from .cabal files are rendered into HTML href attributes without proper sanitization, enabling stored Cross-Site Scripting (XSS) attacks.
Weakness classification
- 74b3a70d-cca6-4d34-9789-e83b222ae3be: CWE-79