CVE-2025-51479

5.4 mediumEPSS 0.3%

Medium (5.4) in onyx onyx. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 26% of CVEs (scores of 2026-10-31)
CWE: CWE-639
Published: 2025-07-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

onyx:onyx

References

https://github.com/onyx-dot-app/onyx
https://github.com/onyx-dot-app/onyx/pull/4714
https://www.gecko.security/blog/cve-2025-51479

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