CVE-2026-1667 Cross-site scripting in GEO Plugin by Squirrly SEO
Unauthenticated attackers can create arbitrary posts and inject scripts if Advanced Custom Fields is active, risking site compromise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1667?
CVE-2026-1667 is a high-severity cross-site scripting vulnerability in cifi GEO Plugin by Squirrly SEO, published on 10 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-1667?
How do I fix CVE-2026-1667?
No fix has been published for CVE-2026-1667 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-1667 being exploited?
There is no known exploitation of CVE-2026-1667 in the wild and no public exploit code.
Sources
Also known as GHSA-x8f2-2f6r-99xx.