What’s Vulnerable › Vulnerabilities

CVE-2021-21616

• Severity: medium (CVSS 4.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 76.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-24 · updated 2026-06-17
• Weakness: CWE-79

Description

Jenkins Active Choices Plugin 2.5.2 and earlier does not escape reference parameter values, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

Affected products

• Jenkins project Jenkins Active Choices Plugin: through 2.5.2

References

• http://www.openwall.com/lists/oss-security/2021/02/24/3
• https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2192
• http://www.openwall.com/lists/oss-security/2021/02/24/3
• https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2192

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