CVE-2026-1667: 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 l
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-1667
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-1667 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for SEO Plugin by
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
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