CVE-2026-82980CWE-287

CVE-2026-82980

Medium · published September 18, 2026

CVSS v3.0
6.3
EPSS
0%
Percentile
21.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
6.3 · MEDIUM
Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00300 · 21.5th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-09-18T06:17Z
References (1)
EPSS history
Timeline
  • 19 SEP 03:54Z
    EPSS moved — → 0%
    epss
  • 18 SEP 01:26Z
    Any authenticated user can lock or unlock files they do not own by targeting absolute WebDAV paths of other users
    cvelistv5