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Security Advisories: GSA_kwCzR0hTQS1nZ2hjLWc4Y2otNHZmds4AAqOV
Stored XSS vulnerability in Jenkins Git Plugin
Jenkins Git Plugin 4.8.2 and earlier does not escape the Git SHA-1 checksum parameters provided to commit notifications when displaying them in a build cause.
This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to submit crafted commit notifications to the
Jenkins Git Plugin 4.8.3 rejects Git SHA-1 checksum parameters that do not match the expected format. Existing values are sanitized when displayed on the UI.
This vulnerability is only exploitable in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier. See the LTS upgrade guide.Permalink: https://github.com/advisories/GHSA-gghc-g8cj-4vfv
Source: GitHub Advisory Database
Published: over 1 year ago
Updated: about 1 month ago
CVSS Score: 6.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Identifiers: GHSA-gghc-g8cj-4vfv, CVE-2021-21684
Fixed in: 4.8.3