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  4. CVE 2026 119561 phpmyadmin through 523 webauthn two factor
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Back to active CVEs
High · CVSS 7.6CVE-2026-119561

phpMyAdmin through 5.2.3 WebAuthn Two-Factor Authentication Bypass via CustomServerCVE-2026-119561

Answer in brief

CVE-2026-119561 records a High severity (CVSS 7.6) vulnerability in phpMyAdmin through 5.2.3 WebAuthn Two-Factor Authentication Bypass via CustomServer. The current sources do not mark it as known exploited. The current feed maps phpMyAdmin/phpMyAdmin (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 30, 2026Updated Oct 30, 2026Source checked Oct 30, 2026First seen by HOL Oct 30, 2026Material review Oct 30, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.6
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 7.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps phpMyAdmin/phpMyAdmin (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
phpMyAdmin/phpMyAdmingeneric>=0 <=5.2.3Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for phpMyAdmin/phpMyAdmin.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 30, 2026

Sources and claim methodology

  • Source referenceabraxaslabs.tech
  • Source referenceabraxaslabs.tech
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • phpMyAdmin through 5.2.3 SQL Injection via Designer saveSettingSame phpmyadmin/phpmyadmin package
  • phpMyAdmin through 5.2.3 SSRF via setup/validate.php After Setup DisabledSame phpmyadmin/phpmyadmin package
  • phpMyAdmin through 5.2.3 Two-Factor Authentication Removal via /config/setSame phpmyadmin/phpmyadmin package
  • phpMyAdmin through 5.2.3 SQL Injection via Central Columns col_extra and col_attributeSame phpmyadmin/phpmyadmin package
  • phpMyAdmin through 5.2.3 Stored XSS via Designer Query History Table NameSame phpmyadmin/phpmyadmin package
  • Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or emptyAlso CWE-347

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-347
Source
CVE List V5
Source checked
Oct 30, 2026
References
5 linked sources
Open source record