GHSA-6626-79jh-5ccr: Duplicate Advisory Remote Code Execution Vulnerability

CRITICAL
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CVSS 9.1
CWE-307
Published
Advisory Summary

GHSA-6626-79jh-5ccr is a CRITICAL (CVSS 9.1) remote code execution vulnerability (CWE-307: Improper Restriction of Excessive Authentication Attempts) affecting Duplicate Advisory libraries in the Packagist ecosystem. The issue involves phpmyfaq enables unauthenticated 2fa brute-force attack via /admin/check acceptance of arbitrary user-id. Remediation is available by upgrading affected packages to version 4.1.2.

GHSA-6626-79jh-5ccr at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-6626-79jh-5ccr
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification CWE-307: Improper Restriction of Excessive Authentication Attempts
Affected Product Duplicate Advisory
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix GHSA-6626-79jh-5ccr

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

thorsten/phpmyfaq fixed: 4.1.2 
Upgrade thorsten/phpmyfaq to 4.1.2
phpmyfaq/phpmyfaq fixed: 4.1.2 
Upgrade phpmyfaq/phpmyfaq to 4.1.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for thorsten/phpmyfaq

How to Check if You Are Affected

To determine whether your application is affected by GHSA-6626-79jh-5ccr, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for thorsten/phpmyfaq

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.1.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-307: Improper Restriction of Excessive Authentication Attempts, where the product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9pq7-mfwh-xx2j. This link is maintained to preserve external references. ### Original Description phpMyFAQ before 4.1.2 contains an improper restriction of excessive authentication attempts vulnerability in the /admin/check endpoint, which accepts arbitrary user-id parameters without session binding or rate limiting. Unauthenticated attackers can brute-force any user's six-digit TOTP code by submitting POST requests with sequential token values, bypassing two-factor authentication to gain full administrative access.

GHSA-6626-79jh-5ccr Affected Duplicate Advisory Versions

2 component(s)
Fixed Versions:
4.1.2
Product / Package Ecosystem Affected Versions Fixed Version
thorsten/phpmyfaq
 Packagist
< 4.1.2
4.1.2
phpmyfaq/phpmyfaq
 Packagist
< 4.1.2
4.1.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9pq7-mfwh-xx2j
NVD — GHSA-6626-79jh-5ccr NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45010
www.vulncheck.com/advisories/phpmyfaq... WEB
https://www.vulncheck.com/advisories/phpmyfaq-unauthenticated-two-factor-authentication-brute-force-via-admin-check-endpoint

Frequently Asked Questions

What is GHSA-6626-79jh-5ccr?
GHSA-6626-79jh-5ccr is a security vulnerability in Duplicate Advisory involving phpMyFAQ enables unauthenticated 2FA brute-force attack via /admin/check acceptance of arbitrary user-id under CWE-307: Improper Restriction of Excessive Authentication Attempts.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 4.1.2 across affected packages: thorsten/phpmyfaq, phpmyfaq/phpmyfaq.
What version fixes GHSA-6626-79jh-5ccr?
Upgrading to 4.1.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is thorsten/phpmyfaq affected?
Yes, thorsten/phpmyfaq is affected in releases prior to 4.1.2. Upgrade your dependency to 4.1.2 or later.
Is phpmyfaq/phpmyfaq affected?
Yes, phpmyfaq/phpmyfaq is affected in releases prior to 4.1.2. Upgrade your dependency to 4.1.2 or later.
What is the CVSS score of GHSA-6626-79jh-5ccr?
GHSA-6626-79jh-5ccr has a CVSS v3.1 base score of 9.1 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with GHSA-6626-79jh-5ccr?
GHSA-6626-79jh-5ccr is classified under CWE-307: Improper Restriction of Excessive Authentication Attempts (The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.).
How can I check Packagist dependencies for GHSA-6626-79jh-5ccr?
Run the dependency tree command: 'inspect dependencies for thorsten/phpmyfaq'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6626-79jh-5ccr",
  "modified" : "2026-06-09T00:00:12Z",
  "published" : "2026-05-15T21:31:32Z",
  "withdrawn" : "2026-06-09T00:00:12Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: phpMyFAQ enables unauthenticated 2FA brute-force attack via /admin/check acceptance of arbitrary user-id",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-9pq7-mfwh-xx2j. This link is maintained to preserve external references.\n\n### Original Description\nphpMyFAQ before 4.1.2 contains an improper restriction of excessive authentication attempts vulnerability in the /admin/check endpoint, which accepts arbitrary user-id parameters without session binding or rate limiting. Unauthenticated attackers can brute-force any user's six-digit TOTP code by submitting POST requests with sequential token values, bypassing two-factor authentication to gain full administrative access.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "thorsten/phpmyfaq"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.1.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "phpmyfaq/phpmyfaq"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.1.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9pq7-mfwh-xx2j"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-45010"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/phpmyfaq-unauthenticated-two-factor-authentication-brute-force-via-admin-check-endpoint"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-307" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-09T00:00:12Z",
    "nvd_published_at" : "2026-05-15T19:17:01Z"
  }
}