CVE-2026-56396
phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights()
Description
phpMyFAQ before 4.1.4 contains missing authorization vulnerabilities in editUser() and updateUserRights() endpoints that allow authenticated administrators to escalate privileges. Non-SuperAdmin users with edit_user permission can set is_superadmin flag or grant arbitrary rights to escalate to SuperAdmin access.
INFO
Published Date :
June 21, 2026, 1:27 p.m.
Last Modified :
June 21, 2026, 1:27 p.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
Affected Products
The following products are affected by CVE-2026-56396
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update phpMyFAQ to version 4.1.4 or later.
- Review user roles and permissions.
- Remove unnecessary edit_user permissions.
- Implement least privilege access controls.
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CVE-2026-56396 vulnerability anywhere in the article.