What’s Vulnerable › Vulnerabilities

CVE-2025-12028: IndieAuth <= 4.5.4 - Cross-Site Request Forgery to Account Takeover via Stolen OAuth Tokens

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-24 · updated 2026-10-08
• Weakness: CWE-352

Description

The IndieAuth plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.5.4. This is due to missing nonce verification on the `login_form_indieauth()` function and the authorization endpoint at wp-login.php?action=indieauth. This makes it possible for unauthenticated attackers to force authenticated users to approve OAuth authorization requests for attacker-controlled applications via a forged request granted they can trick a user into performing an action such as clicking on a link or visiting a malicious page while logged in. The attacker can then exchange the stolen authorization code for an access token, effectively taking over the victim's account with the granted scopes (create, update, delete).

Affected products

• indieweb IndieAuth: through 4.5.4

References

• https://plugins.trac.wordpress.org/browser/indieauth/tags/4.5.4/includes/class-indieauth-authorization-endpoint.php#L411
• https://plugins.trac.wordpress.org/browser/indieauth/tags/4.5.4/includes/class-indieauth-authorization-endpoint.php#L418
• https://plugins.trac.wordpress.org/browser/indieauth/tags/4.5.4/includes/class-indieauth-authorization-endpoint.php#L476
• https://plugins.trac.wordpress.org/changeset/3384558/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/42b373da-d5a6-4e3b-90f4-059da3641841?source=cve

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