CVE-2021-21667

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 75.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-16 · updated 2026-06-17
Weakness: CWE-79

Description

Jenkins Scriptler Plugin 3.2 and earlier does not escape parameter names shown in job configuration forms, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Scriptler/Configure permission.

Affected products

Jenkins project Jenkins Scriptler Plugin: through 3.2

References

http://www.openwall.com/lists/oss-security/2021/06/16/3
https://www.jenkins.io/security/advisory/2021-06-16/#SECURITY-2224
http://www.openwall.com/lists/oss-security/2021/06/16/3
https://www.jenkins.io/security/advisory/2021-06-16/#SECURITY-2224

Get alerted when CVE-2021-21667 or the next vulnerability affects your stack