Security Digest · Critical advisory (no CVE assigned)

GHSA-862m-5253-832r: Auth0 Wordpress Plugin vulnerable to Deserialization of Untrusted Data

Overview The Auth0 Wordpress plugin contains a critical vulnerability due to insecure deserialization of cookie data.

CVSS 9.3 Critical GitHub-reviewed · critical

Should you act?

  • Only if you depend on one of the packages below, directly or transitively, in a vulnerable version. Check your lockfile with composer audit.
  • No CVE has been assigned, so it will not appear in CVE-based scanners that ignore GitHub advisories. npm audit, pip-audit and Dependabot do read GitHub advisories.

Affected packages

EcosystemPackageVulnerableFirst fixed
Composer (PHP)auth0/wordpress>= 5.0.0-BETA0, <= 5.0.15.1.0

Details

Overview The Auth0 Wordpress plugin contains a critical vulnerability due to insecure deserialization of cookie data. If exploited, since SDKs process cookie content without prior authentication, a threat actor could send a specially crafted cookie containing malicious serialized data.

Am I Affected? You are affected by this vulnerability if you meet the following preconditions:

1. Applications using the Auth0 WordPress plugin, versions between 5.0.0 BETA-0 to 5.0.1. 2. Auth0 WordPress plugin uses the Auth0-PHP SDK with version 8.0.0-BETA3 to 8.3.0.

Fix Upgrade the Auth0 WordPress plugin to the latest version (v5.3.0).

CVSS: 9.3 (v4.0) CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H

Sources and references

  1. GitHub Advisory GHSA-862m-5253-832r github.com
  2. github.com github.com
  3. github.com github.com
  4. github.com github.com
  5. github.com github.com
  6. nvd.nist.gov nvd.nist.gov

Critical Composer (PHP) advisories · Today’s Security Digest