Skip to content
Patch Next
Sign inAdd to your agent

← Actionable
High, CVSS 8.8amended

phpMyFAQ privilege escalation: GroupController::updatePermissions lets a GROUP_EDIT admin grant rights they do not hold

CVE-2026-57995GHSA-pg62-f8g4-4wqh

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (phpmyfaq/phpmyfaq 4.1.5; thorsten/phpmyfaq 4.1.5), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

Add to your agent

Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
8.8 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
  • CVE-2026-57995: 0.44% estimated exploitation activity in the next 30 days; percentile 38.48 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Overview When phpMyFAQ hardened its admin permission-assignment endpoints against privilege escalation, it added a "a non-SuperAdmin may only assign rights they themselves hold" constraint to the user-rights endpoint (UserController::updateUserRights). The equivalent group-rights endpoint, GroupController::updatePermissions, did not receive that constraint. A delegated administrator holding only the GROUPEDIT permission can therefore grant any group an arbitrary set of rights — including rights the administrator does not possess — and, by being (or becoming) a member of that group, inherit those rights, escalating to higher privileges up to full administrative control. Impact phpMyFAQ supports delegated administration: the GROUPEDIT right can be granted to a non-SuperAdmin so they can manage groups. Such an administrator can escalate: 1. They call POST /admin/group/update/permissions with groupid set to a group they belong to (or can manage membership of) and grouprights[] containing…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-pg62-f8g4-4wqh

  2. Revision 1 · created ·

    Published from osv record GHSA-pg62-f8g4-4wqh

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2026-57995

Advisory: phpMyFAQ privilege escalation: GroupController::updatePermissions lets a GROUP_EDIT admin grant rights they do not hold
IDs: CVE-2026-57995, GHSA-pg62-f8g4-4wqh
Record: https://patchnext.com/advisories/cve-2026-57995 (revision 2, source checked 26 Oct 2026, 14:50 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: phpmyfaq/phpmyfaq 4.1.5; thorsten/phpmyfaq 4.1.5. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist phpmyfaq/phpmyfaq: affected <= 4.1.4; fixed in 4.1.5
- Packagist thorsten/phpmyfaq: affected <= 4.1.4; fixed in 4.1.5

## Suggested inspection (read-only)
- Packagist phpmyfaq/phpmyfaq: check the installed version with your package manager.
- Packagist thorsten/phpmyfaq: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on phpmyfaq/phpmyfaq, thorsten/phpmyfaq.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-pg62-f8g4-4wqh (OSV record GHSA-pg62-f8g4-4wqh lists affected ranges: Packagist phpmyfaq/phpmyfaq >=0 =0 <4.1.5 (fixed))
- Verified: https://github.com/advisories/GHSA-pg62-f8g4-4wqh (GitHub-reviewed advisory GHSA-pg62-f8g4-4wqh lists affected ranges: Packagist phpmyfaq/phpmyfaq >=0 =0 <=4.1.4)

Commands are suggestions: review each one before running it.

Loading voting…