CVE-2026-66664

GEO Plugin by Squirrly SEO <= 14.1.1 - Reflected Cross-Site Scripting

2026-07-31 00:00

Strategic Overview

Status: Unpatched
Affected Plugin: GEO Plugin by Squirrly SEO
Affected Version: <= 14.1.1
CVSS: 6.1Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2026-66664

View all GEO Plugin by Squirrly SEO vulnerabilities

At a glance

CVE-2026-66664 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the GEO Plugin by Squirrly SEO WordPress plugin, affecting versions <= 14.1.1. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed July 2026, reported by daroo.

Vulnerability Overview

The GEO Plugin by Squirrly SEO plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 14.1.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in GEO Plugin by Squirrly SEO <= 14.1.1 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. No fixed build of this plugin is recorded for GEO Plugin by Squirrly SEO yet, so installs running <= 14.1.1 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How WordSec helps

The attempt arrives as an ordinary request to GEO Plugin by Squirrly SEO: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-66664 https://www.wordfence.com/threat-intel/vulnerabilities/id/afb58149-cff0-4911-8322-c608fc00adf4 https://nvd.nist.gov/vuln/detail/CVE-2026-66664

Related records

Same weakness class

Other vulnerabilities in GEO Plugin by Squirrly SEO

CVSS Vector

6.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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