CVE-2022-27204: 
Java vulnerability analysis and mitigation

CVE-2022-27204 is a cross-site request forgery (CSRF) vulnerability identified in Jenkins Extended Choice Parameter Plugin version 346.vd87693c5a_86c and earlier. The vulnerability was discovered by Oleg Nenashev from CloudBees, Inc. and was publicly disclosed on March 15, 2022. This security issue affects the Jenkins Extended Choice Parameter Plugin, which is a popular plugin used for parameter handling in Jenkins automation server (Jenkins Advisory).

The vulnerability stems from the plugin's form validation methods that do not require POST requests and lack proper permission checks. The security issue is tracked as SECURITY-1350 and has been assigned a Medium severity (CVSS) rating. The vulnerability exists in Extended Choice Parameter Plugin version 346.vd87693c5a_86c and earlier versions (Jenkins Advisory).

The vulnerability allows attackers with Overall/Read permission to connect to an attacker-specified URL through the plugin's form validation methods. This could potentially lead to server-side request forgery (SSRF) attacks, enabling malicious actors to make unauthorized connections to internal or external systems (Jenkins Advisory).

As of the publication of the security advisory on March 15, 2022, no fix was available for this vulnerability. Users of the Extended Choice Parameter Plugin should monitor for updates and consider implementing additional security controls to restrict access to the affected functionality (Jenkins Advisory).