CVE Feed

    Dashboard / CVE / CVE-2026-24421

    CVE-2026-24421

    phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below have flawed authorization logic which exposes the /api/setup/backup endpoint to any authenticated user despite their permissions. SetupController.php uses userIsAuthenticated() but does not verify that the requester has configuration/admin permissions. Non-admin users can trigger a configuration backup and retrieve its path. The endpoint only checks authentication, not authorization, and returns a link to the generated ZIP. This issue is fixed in version 4.0.17.

    Published:Jan 24, 2026
    Last Modified:Apr 18, 2026
    EPS:Jan 24, 2026
    EPSS Score:0.00019
    CVSS Score:6.5

    Affected Products

    Vendor
    Phpmyfaq
    Product
    Phpmyfaq
    Vendor
    Thorsten
    Product
    Phpmyfaq

    Exploits

    https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-wm8h-26fv-mg7ghttps://www.exploit-db.com/exploits/52523

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-85593 (CVSS 5.1) — phpMyFAQ versions before 4.1.8 contain a stored cross-site scripting vulnerability in FaqHelper::convertOldInt…
    CVE-2026-85592 (CVSS 6.3) — phpMyFAQ before 4.1.8 contains an authorization bypass vulnerability in the question creation endpoint where t…
    CVE-2026-85591 (CVSS 7.1) — phpMyFAQ versions before 4.1.8 contain an authentication bypass vulnerability in the user control panel API en…
    CVE-2026-85590 (CVSS 7.1) — phpMyFAQ before 4.1.8 contains an authentication bypass vulnerability in its two-factor authentication (TOTP) …
    CVE-2026-85589 (CVSS 5.3) — phpMyFAQ before 4.2.0-alpha.2 contains a missing authorization vulnerability in the admin dashboard API endpoi…
    CVE-2026-85588 (CVSS 5.3) — phpMyFAQ versions before 4.1.8 include live TOTP shared secrets in plaintext within user data export ZIP files…
    CVE-2026-85587 (CVSS 5.3) — phpMyFAQ before 4.1.8 enforces incorrect permission checks on admin content pages, allowing lesser-privileged …
    CVE-2026-85586 (CVSS 6.9) — phpMyFAQ versions before 4.1.8 fail to validate CAPTCHA when the store parameter is set to 'now' in question s…
    CVE-2026-76215 (CVSS 6.9) — phpMyFAQ before 4.1.7 fails to apply parent FAQ visibility checks before returning child resources including c…
    CVE-2026-76214 (CVSS 9.1) — phpMyFAQ before 4.1.7 fails to persist the WebAuthn login challenge generated by prepareForLogin, because neit…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High