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Vulnerability record · CVE-2026-24420 · published 24 January 2026

CVE-2026-24420: Phpmyfaq improper access control vulnerability

Phpmyfaq · Phpmyfaq

phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below allow an authenticated user without the dlattachment permission to download FAQ attachments due to a incomprehensive permissions check. The presence of a right key is improperly validated as proof of authorization in attachment.php. Additionally, the group and user permission logic contains a flawed conditional expression that may allow unauthorized access. This issue has been fixed in version

6.5 CVSS 3.1 Medium EPSS 0.46% · top 62.1% CWE-284 · Improper access control
6.5CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below allow an authenticated user without the dlattachment permission to download FAQ attachments due to a incomprehensive permissions check. The presence of a right key is improperly validated as proof of authorization in attachment.php. Additionally, the group and user permission logic contains a flawed conditional expression that may allow unauthorized access. This issue has been fixed in version

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-7p9h-m7m8-vhhv ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-59943Phpmyfaq improper access control vulnerabilityphpMyFAQ is an open source FAQ web application. Versions 4.0-nightly-2025-10-03 and below do not enforce uniqueness of email addresses during user re…EPSS 0.42%9.8CVE-2023-5865Phpmyfaq insufficient session expiration vulnerabilityInsufficient Session Expiration in GitHub repository thorsten/phpmyfaq prior to 3.2.2.EPSS 0.58%9.8CVE-2023-5227Phpmyfaq unrestricted file upload vulnerabilityUnrestricted Upload of File with Dangerous Type in GitHub repository thorsten/phpmyfaq prior to 3.1.8.EPSS 0.62%9.8CVE-2023-4006Phpmyfaq csv injection vulnerabilityImproper Neutralization of Formula Elements in a CSV File in GitHub repository thorsten/phpmyfaq prior to 3.1.16.EPSS 0.81%9.8CVE-2023-2429Phpmyfaq improper access control vulnerabilityImproper Access Control in GitHub repository thorsten/phpmyfaq prior to 3.1.13.EPSS 0.53%9.8CVE-2023-1886Phpmyfaq authentication bypass by capture-replay vulnerabilityAuthentication Bypass by Capture-replay in GitHub repository thorsten/phpmyfaq prior to 3.1.12.EPSS 0.88%9.8CVE-2023-1753Phpmyfaq weak password requirements vulnerabilityWeak Password Requirements in GitHub repository thorsten/phpmyfaq prior to 3.1.12.EPSS 0.72%9.8CVE-2023-0788Phpmyfaq code injection vulnerabilityCode Injection in GitHub repository thorsten/phpmyfaq prior to 3.1.11.EPSS 0.89%

Source: NIST National Vulnerability Database (record CVE-2026-24420), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.