In Jenkins Bitbucket Branch Source Plugin 866.vdea_7dcd3008e and earlier, except 848.850.v6a_a_2a_234a_c81, when discovering pull requests from forks, the trust policy "Forks in the same account" allows changes to Jenkinsfiles from users without write access to the project when using Bitbucket Server.

Affected: Maven: org.jenkins-ci.plugins:cloudbees-bitbucket-branch-source

In Jenkins Bitbucket Branch Source Plugin 866.vdea_7dcd3008e and earlier, except 848.850.v6a_a_2a_234a_c81, when discovering pull requests from forks, the trust policy "Forks in the same account" allows changes to Jenkinsfiles from users without write access to the project when using Bitbucket Server.

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Jenkins ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Informationen offenzulegen, Dateien zu manipulieren oder einen Cross-Site-Scripting-Angriff durchzuführen.