CVE-2026-57996
phpMyFAQ - Privilege Escalation via Missing SuperAdmin Guard in user/add Endpoint
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
phpMyFAQ before 4.1.5 contains a privilege escalation vulnerability in the user/add API endpoint that allows non-SuperAdmin administrators to create SuperAdmin accounts. A delegated administrator with USER_ADD/EDIT/DELETE permissions can call POST /admin/api/user/add with isSuperAdmin: true and attacker-chosen credentials to create a SuperAdmin account, then authenticate as that account to achieve full instance takeover.
| CWE | CWE-269 |
| Vendor | phpmyfaq |
| Product | phpmyfaq |
| Published | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
phpMyFAQ / phpMyFAQ
0 < 4.1.5
References
Credits
🔍 Yanchon918s