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Jenkins MCP Server Plugin 0.84.v50ca_24ef83f2 and earlier does not perform permission checks in several MCP tools. This allows to do the following: - Attackers with Item/Read permission can obtain information about the configured SCM in a job despite lacking Item/Extended Read permission (`getJobScm`). - Attackers with Item/Read permission can trigger new builds of a job despite lacking Item/Build permission (`triggerBuild`). - Attackers without Overall/Read permission can retrieve the names of configured clouds (`getStatus`). MCP Server Plugin 0.86.v7d3355e6a_a_18 performs permission checks for the affected MCP tools.

Jenkins ByteGuard Build Actions Plugin 1.0 and earlier stores API tokens unencrypted in job `config.xml` files on the Jenkins controller as part of its configuration. These tokens can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system. Additionally, the job configuration form does not mask these credentials, increasing the potential for attackers to observe and capture them. As of publication of this advisory, there is no fix.

Jenkins Curseforge Publisher Plugin 1.0 and earlier stores API Keys unencrypted in job `config.xml` files on the Jenkins controller as part of its configuration. These keys can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system. Additionally, the job configuration form does not mask these keys, increasing the potential for attackers to observe and capture them. As of publication of this advisory, there is no fix.

Jenkins Nexus Task Runner Plugin 0.9.2 and earlier does not perform a permission check in an HTTP endpoint. This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified username and password. Additionally, this endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. As of publication of this advisory, there is no fix.

Jenkins Start Windocks Containers Plugin 1.4 and earlier does not perform a permission check in an HTTP endpoint. This allows attackers with Overall/Read permission to connect to an attacker-specified URL. Additionally, this endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. As of publication of this advisory, there is no fix.

Jenkins SAML Plugin 4.583.vc68232f7018a_ and earlier does not implement a replay cache. This allows attackers able to obtain information about the SAML authentication flow between a user’s web browser and Jenkins to replay those requests, authenticating to Jenkins as that user. SAML Plugin 4.583.585.v22ccc1139f55 implements a replay cache that rejects replayed requests.

Jenkins ByteGuard Build Actions Plugin 1.0 and earlier stores API tokens unencrypted in job `config.xml` files on the Jenkins controller as part of its configuration. These tokens can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system. Additionally, the job configuration form does not mask these credentials, increasing the potential for attackers to observe and capture them. As of publication of this advisory, there is no fix.

Jenkins JDepend Plugin 1.3.1 and earlier includes an outdated version of JDepend Maven Plugin that does not configure its XML parser to prevent XML external entity (XXE) attacks. This allows attackers able to configure input files for the "Report JDepend" step to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. As of publication of this advisory, there is no fix.

Jenkins Nexus Task Runner Plugin 0.9.2 and earlier does not perform a permission check in an HTTP endpoint. This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified username and password. Additionally, this endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. As of publication of this advisory, there is no fix.

Jenkins Start Windocks Containers Plugin 1.4 and earlier does not perform a permission check in an HTTP endpoint. This allows attackers with Overall/Read permission to connect to an attacker-specified URL. Additionally, this endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. As of publication of this advisory, there is no fix.