CVE-2026-66456— WordPress Profile Extra Fields by BestWebSoft plugin <= 1.3.4 - Cross Site Scripting (XSS) vulnerability
Possible ATT&CK Techniques 1AI
T1059.007 · JavaScriptAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| bestwebsoft | Profile Extra Fields by BestWebSoft | n/a≤ 1.3.4 | affected |
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I. Basic Information for CVE-2026-66456
Vulnerability Information
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Vulnerability Title
WordPress Profile Extra Fields by BestWebSoft plugin <= 1.3.4 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Subscriber Cross Site Scripting (XSS) in Profile Extra Fields by BestWebSoft <= 1.3.4 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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 Profile Extra Fields by BestWebSoft 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Profile Extra Fields by BestWebSoft是WordPress基金会的一款为网站用户个人资料添加额外字段的插件。 WordPress Profile Extra Fields by BestWebSoft 1.3.4及之前版本存在跨站脚本漏洞，该漏洞源于容易受到跨站脚本攻击。
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 |
|---|---|---|---|---|
| bestwebsoft | Profile Extra Fields by BestWebSoft | n/a ~ 1.3.4 | - |
II. Public POCs for CVE-2026-66456
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Vendor Advisories for CVE-2026-66456 (1)
IV. Related Vulnerabilities
Same vendor: bestwebsoft
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Gallery by BestWebSoft <= 4.7.9 - Authenticated (Editor+) SQ - CVE-2026-57642
WordPress Gallery plugin <= 4.7.8 - SQL Injection vulnerabi - CVE-2026-24598
WordPress Multilanguage by BestWebSoft plugin <= 1.5.2 - Bro - CVE-2025-63056
WordPress Contact Form by BestWebSoft plugin <= 4.3.6 - Brok - CVE-2025-9950
Error Log Viewer by BestWebSoft <= 1.1.6 - Authenticated (Ad
Same weakness: CWE-79
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DOMPurify before 3.4.13 Cross-Site Scripting via IN_PLACE ho - CVE-2026-75834
Grav before 2.0.14 Stored XSS via Invalid UTF-8 Byte - CVE-2026-75831
Grav before 2.0.15 Stored XSS via audio/video source URL - CVE-2026-75828
Grav before 2.0.15 Stored XSS via detectXss() Quote Bypass - CVE-2026-75107
Grav Form Plugin before 9.1.19 Stored XSS via Field Properti
V. Comments for CVE-2026-66456
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