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CVE-2021-21610GHSA-7QF3-C2Q8-69M3BIT-JENKINS-2021-21610

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not implement any restrictions for the URL rendering a formatted preview of markup p

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.263.2, 2.275
None on Exploit-DB, Metasploit or GitHub

Summary

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not implement any restrictions for the URL rendering a formatted preview of markup passed as a query parameter, resulting in a reflected cross-site scripting (XSS) vulnerability if the configured markup formatter does not prohibit unsafe elements (JavaScript) in markup.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Jenkins project Jenkins

    through 2.274; through LTS 2.263.1

  • org.jenkins-ci.main:jenkins-coreMaven

    fixed in 2.263.2

  • org.jenkins-ci.main:jenkins-coreMaven

    From 2.264 · fixed in 2.275

References 1

jenkins.io