CVE-2026-57995 json
phpMyFAQ - Privilege Escalation via Missing Self-Rights Constraint in GroupController::updatePermissions
published 2026-06-30 4 mo ago modified 2026-08-26 2 mo ago also GHSA-pg62-f8g4-4wqh , EUVD-2026-40454
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 38%
- public exploits
- 0
- none known
Summary
phpMyFAQ before 4.1.5 contains a privilege escalation vulnerability in GroupController::updatePermissions that allows GROUP_EDIT administrators to grant arbitrary rights to groups without verifying they hold those rights themselves. A delegated administrator can exploit this by assigning high-value permissions to a group they belong to, inheriting those rights and escalating privileges up to full administrative control.
Patch / fix
- packagist phpmyfaq/phpmyfaq 4.1.5
- packagist thorsten/phpmyfaq 4.1.5
- phpMyFAQ phpMyFAQ 4.1.5
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-pg62-f8g4-4wqh referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | phpmyfaq/phpmyfaq | <4.1.5 |
4.1.5 |
| packagist | thorsten/phpmyfaq | <4.1.5 |
4.1.5 |
Affected products
- phpMyFAQ phpMyFAQ
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
github.com
/thorsten/phpMyFAQ/commit/de5016607dd606ef161cccd10fa5deec303c834e
web
-
github.com
/thorsten/phpMyFAQ/security/advisories/GHSA-pg62-f8g4-4wqh
vendor-advisory, exploit, web
-
vulncheck.com
/advisories/phpmyfaq-privilege-escalation-via-missing-self-rights-constraint-in-groupcontroller-updatepermissi
third-party-advisory
-
github.com
/thorsten/phpMyFAQ
package
Sources
- CVE List CVE-2026-57995
- GitHub Advisory GHSA-pg62-f8g4-4wqh
- NVD CVE-2026-57995
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