CVE-2026-24422: phpMyFAQ Public API Endpoints Expose Emails Vulnerability

MODERATE
Advisory Identifier: GHSA-j4rc-96xj-gvqc
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CVSS 5.3
CWE-200
Published
Advisory Summary

CVE-2026-24422 is a MODERATE (CVSS 5.3) public api endpoints expose emails vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting phpMyFAQ libraries in the Packagist ecosystem. The issue involves public api endpoints expose emails and invisible questions. Remediation is available by upgrading affected packages to version 4.0.17.

CVE-2026-24422 at a Glance

CVE Identifier CVE-2026-24422
GHSA Identifier GHSA-j4rc-96xj-gvqc
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product phpMyFAQ
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:L/I:N/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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-24422

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

phpmyfaq/phpmyfaq fixed: 4.0.17 
Upgrade phpmyfaq/phpmyfaq to 4.0.17
thorsten/phpmyfaq fixed: 4.0.17 
Upgrade thorsten/phpmyfaq to 4.0.17
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 phpmyfaq/phpmyfaq

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-24422, inspect your project dependencies for phpMyFAQ:

inspect dependencies for phpmyfaq/phpmyfaq

Analyze the terminal output to locate any version of phpMyFAQ in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.0.17), 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-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In phpMyFAQ, 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

### Summary Several public API endpoints return email addresses and non‑public records (e.g. open questions with isVisible=false). ### Details OpenQuestionController::list() calls Question::getAll() with the default showAll=true, returning invisible questions and their emails. Similar exposures exist in comment/news/faq APIs. ### PoC ``` curl -i -H 'Accept-Language: en' \ http://192.168.40.16/phpmyfaq/api/v3.0/open-questions ``` ### Impact Privacy exposure of email addresses and non‑public content; increased risk of phishing/scraping.

CVE-2026-24422 Affected phpMyFAQ Versions

2 component(s)
Fixed Versions:
4.0.17
Product / Package Ecosystem Affected Versions Fixed Version
phpmyfaq/phpmyfaq
 Packagist
< 4.0.17
4.0.17
thorsten/phpmyfaq
 Packagist
< 4.0.17
4.0.17

References

GitHub Advisory / Wiki ADVISORY
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-j4rc-96xj-gvqc
NVD — CVE-2026-24422 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-24422
phpMyFAQ Source Repository REPOSITORY
https://github.com/thorsten/phpMyFAQ

Frequently Asked Questions

What is CVE-2026-24422?
CVE-2026-24422 is a security vulnerability in phpMyFAQ involving Public API endpoints expose emails and invisible questions under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which phpMyFAQ versions are affected?
Affected versions include releases prior to 4.0.17 across affected packages: phpmyfaq/phpmyfaq, thorsten/phpmyfaq.
What version fixes CVE-2026-24422?
Upgrading to 4.0.17 (or the latest patched release for your respective branch) resolves the vulnerability.
Is phpmyfaq/phpmyfaq affected?
Yes, phpmyfaq/phpmyfaq is affected in releases prior to 4.0.17. Upgrade your dependency to 4.0.17 or later.
Is thorsten/phpmyfaq affected?
Yes, thorsten/phpmyfaq is affected in releases prior to 4.0.17. Upgrade your dependency to 4.0.17 or later.
What is the CVSS score of CVE-2026-24422?
CVE-2026-24422 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-24422?
CVE-2026-24422 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Packagist dependencies for CVE-2026-24422?
Run the dependency tree command: 'inspect dependencies for phpmyfaq/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-j4rc-96xj-gvqc",
  "modified" : "2026-01-29T03:47:08Z",
  "published" : "2026-01-23T20:17:33Z",
  "aliases" : [ "CVE-2026-24422" ],
  "summary" : "phpMyFAQ: Public API endpoints expose emails and invisible questions",
  "details" : "### Summary\nSeveral public API endpoints return email addresses and non‑public records (e.g. open questions with isVisible=false).\n\n### Details\nOpenQuestionController::list() calls Question::getAll() with the default showAll=true, returning invisible questions and their emails. Similar exposures exist in comment/news/faq APIs.\n\n### PoC\n```\ncurl -i -H 'Accept-Language: en' \\\n  http://192.168.40.16/phpmyfaq/api/v3.0/open-questions\n```\n\n### Impact\nPrivacy exposure of email addresses and non‑public content; increased risk of phishing/scraping.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "phpmyfaq/phpmyfaq"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.0.17"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 4.0.16"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "thorsten/phpmyfaq"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.0.17"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 4.0.16"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-j4rc-96xj-gvqc"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-24422"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/thorsten/phpMyFAQ"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-01-23T20:17:33Z",
    "nvd_published_at" : "2026-01-24T03:16:01Z"
  }
}