What the vulnerability does
01Description
The SEO Plugin by Squirrly SEO plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 12.4.16. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to invoke privileged state-changing Squirrly cloud API operations, such as revoking the site's Google Search Console and Google Analytics integrations via `api/gsc/revoke` and `api/ga/revoke`, that are otherwise restricted to administrator-level users holding the `sq_manage_settings` capability.
Explanation of Vulnerability in Simple Terms
02Summary
The SEO Plugin by Squirrly SEO versions 12.4.16 and earlier lack proper authorization checks, allowing authenticated users with low privileges to modify site data they should not have access to. An attacker with a basic user account can alter content or settings without the necessary permissions. Update to a version newer than 12.4.16 to resolve this issue.
What an attacker can do
03Attacker Capabilities
Modify site data or settings without proper authorization.
Potential impact on your site
04Site Impact
Unauthorized users can alter plugin settings or content, potentially damaging site integrity.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account on the site.
Key dates
06Disclosure timeline
June 6, 2026
CVE published
June 6, 2026
Record updated
