CVE-2021-21684

MEDIUM

Jenkins Git Plugin < 4.8.2 - Stored Cross-Site Scripting via Git SHA-1 Checksum Parameter

Title source: llm
STIX 2.1

Description

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, resulting in a stored cross-site scripting (XSS) vulnerability.

References (2)

Core 2
Core References
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/10/06/1

Scores

CVSS v3 6.1
EPSS 0.0060
EPSS Percentile 69.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-116
Status published
Products (2)
jenkins/git < 4.8.2
org.jenkins-ci.plugins/git 0 - 4.8.3Maven
Published Oct 06, 2021
Tracked Since Feb 18, 2026