Detections
Analytics

CVE-2026-40472

critical

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.

References

https://osv.dev/vulnerability/HSEC-2026-0004

Details

Source: Mitre, NVD

Published: 2026-04-23

Updated: 2026-04-24

Risk Information

CVSS v2

Base Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:P

Severity: High

CVSS v3

Base Score: 9.9

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Severity: Critical

EPSS

EPSS: 0.00046