CVE-2026-16049

Mattermost Plugins versions =11.8 10.20.11 11.5.7.0 The Mattermost GitLab plugin fails to verify channel permissions when processing API requests with a caller-supplied postid, and fails to validate the weburl parameter against the configured GitLab instance, which allows an authenticated attacke...

CVE-2026-16049

The Mattermost GitLab plugin (versions ≤11.8, 10.20.11, 11.5.7.0) fails to verify channel permissions for caller-supplied post_id and does not validate the web_url parameter against the configured GitLab instance. Through the createIssue and attachCommentToIssue API endpoints, an authenticated at...

CVE-2026-16049

Mattermost Plugins versions =11.8 10.20.11 11.5.7.0 The Mattermost GitLab plugin fails to verify channel permissions when processing API requests with a caller-supplied postid, and fails to validate the weburl parameter against the configured GitLab instance, which allows an authenticated attacke...

CVE-2007-6617: Improper Neutralization of Input During Web Page Generation

Cross-site scripting XSS vulnerability in 500page.jsp in JIRA Enterprise Edition before 3.12.1 allows remote attackers to inject arbitrary web script or HTML, which is not properly handled when generating error messages, as demonstrated by input originally sent in the URI to secure/CreateIssue...