CVE-2026-66664
HIGHCVSS 7.1/10EPSS 0.19%
Last modified
CVE-2026-66664 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. Unauthenticated Cross Site Scripting (XSS) in SEO Plugin by Squirrly SEO <= 14.2.0 versions.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
Description
Unauthenticated Cross Site Scripting (XSS) in SEO Plugin by Squirrly SEO <= 14.2.0 versions.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| SEO Squirrly | SEO Plugin by Squirrly SEO | >= n/a, <= 14.2.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-66664?
Unauthenticated Cross Site Scripting (XSS) in SEO Plugin by Squirrly SEO <= 14.2.0 versions.
How severe is CVE-2026-66664?
CVE-2026-66664 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.
How do I fix CVE-2026-66664?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-66642Cross-Site Request Forgery (CSRF) vulnerability in WP Umbrel…5.4
- CVE-2026-6665The SCRAM code in PgBouncer before 1.25.2 did not check the …9.8
- CVE-2026-66659Improper Neutralization of Special Elements used in an SQL C…9.3
- CVE-2026-6666A possible null pointer reference in PgBouncer before 1.25.2…7.5
- CVE-2026-66662Unauthenticated Privilege Escalation in Frontend Admin by Dy…9.8
- CVE-2026-66663Unauthenticated Cross Site Scripting (XSS) in WP Data Access…7.1
- CVE-2026-66665Unauthenticated Arbitrary File Upload in Type Hub <= 2.0.6 v…10
- CVE-2026-6667PgBouncer before 1.25.2 did not perform an appropriate autho…4.3
- CVE-2026-66678Contributor Broken Access Control in Advanced Custom Fields:…4.3
- CVE-2026-66681Unauthenticated Cross Site Request Forgery (CSRF) in Theme M…4.3
- CVE-2026-66683Unauthenticated Sensitive Data Exposure in Custom CSS and Ja…5.3
- CVE-2026-66684Unauthenticated Sensitive Data Exposure in Export Import Men…5.3
Are you affected by CVE-2026-66664?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST