CVE-2025-27625

In Jenkins 2.499 and earlier, LTS 2.492.1 and earlier, redirects starting with backslash (`\`) characters are considered safe, allowing attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site, because browsers interpret these characters as part of scheme-relative redirects.

Score

CVSS 3.1 4.3 Medium

Status

Analyzed - jenkinsci-cert@googlegroups.com

Published

2025-03-05

Last modified

2025-03-06

Weaknesses

CWE-601

Affected products

• Jenkins (Jenkins)
• Jenkins (Jenkins Project)

References

• https://www.jenkins.io/security/advisory/2025-03-05/#SECURITY-3501