CVE-2021-21603

Aliases:GHSA-98gq-6hxg-52r6BIT-jenkins-2021-21603
Advisory lineage Upstream: 0 Downstream: 3
Modified
Published: 13 Jan 2021, 15:55
Last modified:03 Aug 2024, 18:16

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.4 MEDIUM
v3.1 (nvd)
EPSS Score
0.32% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Jan 2021, 15:55
Published
Vulnerability first disclosed
03 Aug 2024, 18:16
Last Modified
Vulnerability information updated

Description

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape notification bar response contents, resulting in a cross-site scripting (XSS) vulnerability.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
  • v2.0•LOW•Score: 3.5AV:N/AC:M/Au:S/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 0.32%• Percentile: 55%

Techniques & Countermeasures

  • CWE-79•Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

    The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Affected Systems

  • jenkins project•jenkins

    ≥ unspecified, ≤ 2.274 | ≥ unspecified, ≤ LTS 2.263.1

  • Unknown•Jenkins

    ≤ 2.263.1 | ≤ 2.274

  • org.jenkins-ci.main•jenkins-core

    < 2.275 | ≥ 2.263.2, < 2.275

References (4)