WordPress Plugin Vulnerabilities

SEO Plugin by Squirrly SEO < 14.0.1 - Unauthenticated Arbitrary Post Creation and Stored Cross-Site Scripting via savePost()

Description

The SEO Plugin by Squirrly SEO plugin for WordPress is vulnerable to Arbitrary Post Creation and Stored Cross-Site Scripting in all versions up to, and including, 14.0.0 due to a leak of an API token and insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to create arbitrary posts, and, if the Advanced Custom Fields plugin is installed and activated, inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affects Plugins

Fixed in 14.0.1

References

Classification

Type
NO AUTHORISATION
CWE
CVSS

Miscellaneous

Original Researcher
Osvaldo Noe Gonzalez Del Rio (Os)
Verified
No

Timeline

Publicly Published
2026-07-10 (about 3 months ago)
Added
2026-07-10 (about 3 months ago)
Last Updated
2026-07-10 (about 3 months ago)

Other