Jenkins Assembla Plugin has a cross-site request forgery (CSRF) vulnerability

published 2026-06-24 4 mo ago modified 2026-10-25 14 d ago also GHSA-429r-3j78-2pxm , EUVD-2026-38786

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

A cross-site request forgery (CSRF) vulnerability in Jenkins Assembla Plugin 1.4 and earlier allows attackers to connect to an attacker-specified URL using an attacker-specified username and password.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 4 mo ago (2026-06-24)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
GitHub	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	org.jenkins-ci.plugins:assembla	<=1.4	no fix listed

Affected products

Jenkins Project Jenkins Assembla Plugin

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

jenkins.io /security/advisory/2026-06-24/#SECURITY-3692%20(2)
vendor-advisory, web
nvd.nist.gov /vuln/detail/CVE-2026-57305
advisory
github.com /lucamilanesio/assembla-jenkins-plugin
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary