CVE-2021-21619

MEDIUM
5.4
CVSS Score
Published: February 24, 2021 at 03:05 PM UTC
Updated: June 17, 2026 at 03:35 AM UTC
1 product affected across 1 vendorClaim

Using Jenkins Claim Plugin by Jenkins project?

Get instant alerts when new vulnerabilities affect Jenkins Claim Plugin - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.4
Exploit prediction
EPSS 9%

Description

Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Claim· Jenkinsjenkins-plugin
95%
v ≤ 2.18.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card