CVE-2026-85591

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    CVE-2026-85591

    Published: 4 Sept 2026Last Modified: 12 Sept 2026

    Summary: phpMyFAQ before 4.1.8 Authentication Bypass via Unverified Password Change

    Details: phpMyFAQ versions before 4.1.8 contain an authentication bypass vulnerability in the user control panel API endpoint that allows authenticated attackers to change account passwords without verifying the current password. Attackers with session access can submit a PUT request to the user data update endpoint with only a CSRF token to silently change any user's password, including administrators, causing irreversible account takeover and victim lockout.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85591.json, https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-6r2c-694w-24qv, https://nvd.nist.gov/vuln/detail/CVE-2026-85591, https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-authentication-bypass-via-unverified-password-change

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -33fae25ebac875a06041ce47300b554c5da715d0

    Affected versions

    4.1.7
    4.1.6
    4.1.4
    4.1.3
    4.1.2
    4.1.1
    4.1.0
    4.1.0-RC.7
    4.1.0-RC.6
    4.1.0-RC.5
    4.1.0-RC.4
    4.1.0-RC.2
    4.1.0-RC
    4.1.0-beta.2
    4.1.0-beta
    4.1.0-alpha.3
    4.1.0-alpha.2
    4.1.0-alpha

    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
    CVE-2026-85591 | CVE-DB