CVE-2026-66797

Improper access control in CloudStack's annotation functionality allows unauthorized comment creation and disclosure. The addAnnotation and listAnnotation APIs perform an ownership check when an entity's UUID is specified, but fail to honor its result correctly. This lets any authenticated user...

CVE-2026-18934 RSS Aggregator by Feedzy < 5.2.6 - Author+ Cross-User Import Job Manipulation and Post Deletion

The RSS Aggregator by Feedzy WordPress plugin before 5.2.6 does not verify that the requesting user owns or is allowed to edit the import job named in the request, allowing users with author-level access and above to permanently delete the posts created by another user's import job, reset its...

PYSEC-2026-2766 Open WebUI: Cross-user file disclosure via /api/chat/completions image_url field

summary POST /api/chat/completions accepts an imageurl.url value that, when it does NOT start with http://, https://, or data:image/, is interpreted as a file id and resolved against the global file table with no ownership check. An authenticated user can therefore set imageurl.url to another...

CVE-2026-56765

Vikunja before 2.2.1 contains an authorization flaw where the LinkSharing.ReadAll endpoint exposes share hashes to users with read access, enabling permission escalation to admin-level shares. The GetTaskAttachment endpoint performs permission checks against user-supplied task IDs but fetches...

CVE-2026-45781

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.9, OCI ownership validation skips label-match check when upstream OCI registry returns HTTP 429, letting any authenticated publisher bind their io.github./ namespace to OCI images the...

CVE-2026-6965 Tutor LMS <= 3.9.9 - Insecure Direct Object Reference to Authenticated (Instructor+) Arbitrary Post Deletion via 'course' GET Parameter

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to and including 3.9.9. This is due to the getcourseidby function unconditionally trusting the user-supplied course GET parameter as the authoritative course ...

CVE-2026-33720 n8n Has Authorization Bypass in OAuth Callback via N8N_SKIP_AUTH_ON_OAUTH_CALLBACK

n8n is an open source workflow automation platform. Prior to version 2.8.0, when the N8NSKIPAUTHONOAUTHCALLBACK environment variable is set to true, the OAuth callback handler skips ownership verification of the OAuth state parameter. This allows an attacker to trick a victim into completing an...

CVE-2026-27943 OpenEMR's Eye Exam View Trusts form_id Without Verifying Patient/Encounter Ownership

OpenEMR is a free and open source electronic health records and medical practice management application. In versions up to and including 8.0.0, the eye exam eyemag view loads data by formid or equivalent without verifying that the form belongs to the current user’s patient/encounter context. An...

CVE-2026-27943 OpenEMR's Eye Exam View Trusts form_id Without Verifying Patient/Encounter Ownership

OpenEMR is a free and open source electronic health records and medical practice management application. In versions up to and including 8.0.0, the eye exam eyemag view loads data by formid or equivalent without verifying that the form belongs to the current user’s patient/encounter context. An...