Description
Authorization bypass in update_user_group in onyx-dot-app Onyx Enterprise Edition 0.27.0 allows remote authenticated attackers to modify arbitrary user groups via crafted PATCH requests to the /api/manage/admin/user-group/id endpoint, bypassing intended curator-group assignment checks.
References (3)
Core 3
Core References
Exploit, Issue Tracking
https://github.com/onyx-dot-app/onyx/pull/4714
Exploit, Third Party Advisory
https://www.gecko.security/blog/cve-2025-51479
Scores
CVSS v3
5.4
EPSS
0.0008
EPSS Percentile
24.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-639
Status
published
Products (1)
onyx/onyx
0.27.0
Published
Jul 22, 2025
Tracked Since
Feb 18, 2026