CVE-2026-42523CRITICAL 9.0EPSS p19.6%

CVE-2026-42523CVE-2026-42523

Description

Jenkins GitHub Plugin 1.46.0 and earlier improperly processes the current job URL as part of JavaScript implementing validation of the feature "GitHub hook trigger for GITScm polling", resulting in a stored cross-site scripting (XSS) vulnerability exploitable by non-anonymous attackers with Overall/Read permission.

Scoring

CVSS 3.19.0 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
EPSS0.28% probability of exploitation · percentile 19.6% · 2026-06-18T12:00:27Z
Published2026-04-29
Last modified2026-05-05

Underlying weaknesses· 1

CWE-79

References

  1. https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3704

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')cwe-790%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.