# CVE-2026-42523

> Vulnerability · severity: **CRITICAL** (CVSS 9).

## 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.

## Key facts

- **CVE ID:** CVE-2026-42523
- **Published:** 2026-04-29
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9
- **CWE codes:** CWE-79

## Affected products

- `jenkins:github`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-42523

## Citation

> AI Analytics. CVE-2026-42523. Retrieved 2026-07-20 from https://api.ai-analytics.org/cve/CVE-2026-42523. Derived from NIST NVD. Licensed CC0.

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