Vulnerability · Published Mar 8, 2023 · Assigned by jenkins

CVE-2023-27898

Critical 9.6

In plain English

A critical-severity cross-site scripting in Jenkins from Jenkins Project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.6Critical

Exploit odds (30 days)1.8%top 20.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Jenkins 2.270 through 2.393 (both inclusive), LTS 2.277.1 through 2.375.3 (both inclusive) does not escape the Jenkins version a plugin depends on when rendering the error message stating its incompatibility with the current version of Jenkins, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide plugins to the configured update sites and have this message shown by Jenkins instances.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	org.jenkins-ci.main:jenkins-core	2.394	GHSA-j664-qhh4-hpf8
Maven	org.jenkins-ci.main:jenkins-core	2.375.4	GHSA-j664-qhh4-hpf8

Affected products (as reported)

Vendor	Product	Versions
Jenkins Project	Jenkins	2.270 – before 2.*

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References

Jenkins Security Advisory 2023-03-08 vendor-advisory