Name: CVE-2026-84677: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2026-09-02T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-84677, CWE-79, CVSS 5.4, EPSS 0.00226

Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting.

CVSS Details

CVSS 3.1 Base Score: 5.4
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Jenkins 2026 09 02	—	Upgrade Jenkins to version 2.580Upgrade Jenkins LTS to the latest versionUpgrade Jenkins to the latest versionUpgrade Jenkins LTS to version 2.568.3	Sep 3, 2026	Sep 2, 2026

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CVSS Details

Covered by Rapid7

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