GHSA-vvg7-8rmq-92g7
Auth0 WordPress has Improper Audience Validation via Auth0-PHP SDK Dependency
GHSA-vvg7-8rmq-92g7 is a medium vulnerability (CVSS 6.8) in auth0/wordpress, published December 17, 2025. No source lists public exploit code. Fixed in auth0/wordpress 5.5.0.
- Severity
- 6.8 MediumCVSS 3.1, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
5.5.0auth0/wordpress +1 more
Description
Description
In applications built with the Auth0-PHP SDK, the audience validation in access tokens is performed improperly. Without proper validation, affected applications may accept ID tokens as Access tokens.
Affected product and versions
Projects are affected if they meet the following preconditions:
- Applications using the Auth0 Wordpress plugin with version between 5.0.0-BETA0 and 5.4.0,
- Auth0 Wordpress plugin uses the Auth0-PHP SDK with versions between 8.0.0 and 8.17.0.
Resolution
Upgrade Auth0 Wordpress plugin to version 5.5.0 or greater.
Acknowledgement
Okta would like to thank Jafar Sadiq (iaf4r) for their discovery and responsible disclosure.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Affected packages
| Package | Affected | Fixed |
|---|---|---|
auth0/wordpressPackagist | 5.0.0-BETA0 to 5.4.0 | 5.5.0 |
auth0/wordpressPackagist | 5.0.0-BETA0 up to 5.5.0, plus listed versions 5.0.05.0.0-BETA15.0.15.1.05.2.05.2.15.3.05.4.0 | 5.5.0 |
What each source reports
GitHub Advisories Score used
Auth0 WordPress has Improper Audience Validation via Auth0-PHP SDK Dependency
Description
In applications built with the Auth0-PHP SDK, the audience validation in access tokens is performed improperly. Without proper validation, affected applications may accept ID tokens as Access tokens.
Affected product and versions
Projects are affected if they meet the following preconditions:
- Applications using the Auth0 Wordpress plugin with version between 5.0.0-BETA0 and 5.4.0,
- Auth0 Wordpress plugin uses the Auth0-PHP SDK with versions between 8.0.0 and 8.17.0.
Resolution
Upgrade Auth0 Wordpress plugin to version 5.5.0 or greater.
Acknowledgement
Okta would like to thank Jafar Sadiq (iaf4r) for their discovery and responsible disclosure.
- Record
GHSA-vvg7-8rmq-92g7- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-863, CWE-1395
- Updated
- 2026-11-02
OSV
Auth0 WordPress has Improper Audience Validation via Auth0-PHP SDK Dependency
Description
In applications built with the Auth0-PHP SDK, the audience validation in access tokens is performed improperly. Without proper validation, affected applications may accept ID tokens as Access tokens.
Affected product and versions
Projects are affected if they meet the following preconditions:
- Applications using the Auth0 Wordpress plugin with version between 5.0.0-BETA0 and 5.4.0,
- Auth0 Wordpress plugin uses the Auth0-PHP SDK with versions between 8.0.0 and 8.17.0.
Resolution
Upgrade Auth0 Wordpress plugin to version 5.5.0 or greater.
Acknowledgement
Okta would like to thank Jafar Sadiq (iaf4r) for their discovery and responsible disclosure.
- Record
GHSA-vvg7-8rmq-92g7- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-1395, CWE-863
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.