CVE-2018-1000407 — A cross-site scripting vulnerability exists in Jenkins 2

A cross-site scripting vulnerability exists in Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/hudson/model/Api.java that allows attackers to specify URLs to Jenkins that result in rendering arbitrary attacker-controlled HTML by Jenkins.

01What is this vulnerability?

A cross-site scripting vulnerability exists in Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/hudson/model/Api.java that allows attackers to specify URLs to Jenkins that result in rendering arbitrary attacker-controlled HTML by Jenkins.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-01-09T23:00:00.000Z
• Last modified: 2024-08-05T12:40:46.990Z

09References

• www.securityfocus.com — http://www.securityfocus.com/bid/106532
• jenkins.io — https://jenkins.io/security/advisory/2018-10-10/#SECURITY-1129