SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-21628

Jenkins Build With Parameters Plugin 1.5 and earlier does not escape parameter names and descriptions, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

MEDIUM 5.4EPSS 81.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 81.4%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

Jenkins Build With Parameters Plugin 1.5 and earlier does not escape parameter names and descriptions, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

CVSS 3.1
5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
81.43% probability · 100th percentile
CISA KEV
Not listed
Weakness
CWE-79
Affected
jenkins/build with parameters
Source
jenkinsci-cert@googlegroups.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.