CVE-2026-66664— WordPress SEO plugin by Squirrly SEO plugin <= 14.2.0 - Cross Site Scripting (XSS) vulnerability
Quick assessment
Affected
SEO Squirrly SEO Plugin by Squirrly SEO
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
WordPress GEO Plugin by Squirrly SEO是WordPress基金会开源的一款协助提升搜索引擎可见性与内容优化效果的插件。 WordPress GEO Plugin by Squirrly SEO 14.2.0及之前版本存在跨站脚本漏洞，该漏洞源于对用户输入验证不当，可能导致未经身份验证的攻击者实施跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| SEO Squirrly | SEO Plugin by Squirrly SEO | n/a≤ 14.2.0 |
affected |
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I. Basic Information for CVE-2026-66664
Vulnerability Information
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Vulnerability Title
WordPress SEO plugin by Squirrly SEO plugin <= 14.2.0 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Cross Site Scripting (XSS) in SEO Plugin by Squirrly SEO <= 14.2.0 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress GEO Plugin by Squirrly SEO 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress GEO Plugin by Squirrly SEO是WordPress基金会开源的一款协助提升搜索引擎可见性与内容优化效果的插件。 WordPress GEO Plugin by Squirrly SEO 14.2.0及之前版本存在跨站脚本漏洞，该漏洞源于对用户输入验证不当，可能导致未经身份验证的攻击者实施跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| SEO Squirrly | SEO Plugin by Squirrly SEO | n/a ~ 14.2.0 | - |
|
II. Public POCs for CVE-2026-66664
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-66664 (1)
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