Jenkins Assembla Plugin <1.4 CSRF Allows Remote URL Connections
CVE-2026-57305 Published on June 24, 2026
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.
Vulnerability Analysis
CVE-2026-57305 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a Session Riding Vulnerability?
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. When a web server is designed to receive a request from a client without any mechanism for verifying that it was intentionally sent, then it might be possible for an attacker to trick a client into making an unintentional request to the web server which will be treated as an authentic request. This can be done via a URL, image load, XMLHttpRequest, etc. and can result in exposure of data or unintended code execution.
CVE-2026-57305 has been classified to as a Session Riding vulnerability or weakness.
Products Associated with CVE-2026-57305
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Affected Versions
Jenkins Project Jenkins Assembla Plugin:- Before and including 1.4 is affected.