CVE-2026-82980: Medium severity vulnerability
Any authenticated user can lock or unlock files they do not own by targeting absolute WebDAV paths of other users. The DAV plugin resolves files from the absolute request URI without verifying that the path segment matches the authenticated session user. This enables:
Cross-user manual locks : attacker locks a victim's files, blocking writes (PUT/MOVE/DELETE, editor saves). Lock-token disclosure: the app returns the lock token to unauthorized callers, enabling them to remove token-based locks (client locks) of other users.
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The attacker needs to be authenticated. No user interaction is required.
Can this be used to disrupt another user's work without modifying their files?
Yes. An attacker can place manual locks on another user's files, which can block PUT, MOVE, DELETE, and editor-save operations.
What is the impact of the exposed lock tokens?
Unauthorized callers can receive lock tokens for other users' files. Those tokens can then be used to remove other users' token-based client locks.