Auth bypass in Onlyoffice Docs
CVE-2025-6380
The ONLYOFFICE Docs plugin for WordPress is vulnerable to Privilege Escalation due to missing authorization within its oo.callback REST endpoint in versions 1.1.0 to 2.2.0. The plugin’s permission callback only verifies that the supplied, encrypted attachment ID maps to an existing attachment post, but does not verify the requester’s identity or capabilities. This makes it possible for unauthenticated attackers to log in as an arbitrary user.
Vulnerability class: Broken Access Control
EPSS: 0.007 (50.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Onlyoffice Docs — versions 1.1.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-6380?
- CVE-2025-6380 is a critical-severity vulnerability in Onlyoffice Docs, classified under Missing Authorization. CVSS score: 9.8/10. Published 2025-07-24.
- How severe is CVE-2025-6380?
- Critical severity. CVSS v3 base score is 9.8 out of 10.