What’s Vulnerable › Vulnerabilities

CVE-2020-2161

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-03-25 · updated 2026-06-17
• Weakness: CWE-79

Description

Jenkins 2.227 and earlier, LTS 2.204.5 and earlier does not properly escape node labels that are shown in the form validation for label expressions on job configuration pages, resulting in a stored XSS vulnerability exploitable by users able to define node labels.

Affected products

• Jenkins: through 2.204.5; through 2.227

References

• http://www.openwall.com/lists/oss-security/2020/03/25/2
• https://jenkins.io/security/advisory/2020-03-25/#SECURITY-1781
• http://www.openwall.com/lists/oss-security/2020/03/25/2
• https://jenkins.io/security/advisory/2020-03-25/#SECURITY-1781

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