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    CVE-2026-119561

    phpMyAdmin through 5.2.3 contains an authentication bypass vulnerability in CustomServer::parseAndValidateAssertionResponse() that never verifies WebAuthn assertion signatures against stored public keys. Attackers holding a victim's MySQL credentials can POST a crafted webauthn_request_response with matching challenge, origin, and rpIdHash to bypass the second factor and gain database privileges.

    Published:Oct 30, 2026
    Last Modified:Oct 30, 2026
    EPS:Oct 30, 2026
    EPSS Score:
    CVSS Score:6.8

    Affected Products

    Vendor
    Phpmyadmin
    Product
    Phpmyadmin

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

    Related CVEs

    CVE-2026-119563 (CVSS 5.4) — phpMyAdmin through 5.2.3 contains a stored cross-site scripting vulnerability that allows database users with …
    CVE-2026-119562 (CVSS 4.2) — phpMyAdmin through 5.2.3 contains an sql injection vulnerability that allows authenticated users to inject SQL…
    CVE-2026-119429 (CVSS 4.3) — phpMyAdmin through 5.2.3 contains a missing re-authentication vulnerability that allows authenticated attacker…
    CVE-2026-119428 (CVSS 3.7) — phpMyAdmin through 5.2.3 contains a server-side request forgery vulnerability that allows unauthenticated atta…
    CVE-2026-119427 (CVSS 4.2) — phpMyAdmin through 5.2.3 contains an sql injection vulnerability in Designer saveSetting() that allows authent…
    CVE-2026-119426 (CVSS 7.5) — phpMyAdmin through 5.2.3 contains a cross-site request forgery vulnerability that allows remote attackers to e…
    CVE-2025-24530 (CVSS 6.4) — An issue was discovered in phpMyAdmin 5.x before 5.2.2. An XSS vulnerability has been discovered for the check…
    CVE-2025-24529 (CVSS 6.4) — An issue was discovered in phpMyAdmin 5.x before 5.2.2. An XSS vulnerability has been discovered for the Inser…
    CVE-2023-25727 (CVSS 5.4) — In phpMyAdmin before 4.9.11 and 5.x before 5.2.1, an authenticated user can trigger XSS by uploading a crafted…
    CVE-2020-22452 (CVSS 9.8) — SQL Injection vulnerability in function getTableCreationQuery in CreateAddField.php in phpMyAdmin 5.x before 5…

    References

    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-2026-119561 — Phpmyadmin | CVE-DB