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CVE-2026-57754— WordPress Livemesh Addons for WPBakery Page Builder plugin <= 3.9.4 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
Livemesh Livemesh Addons for WPBakery Page Builder
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.

livemesh WPBakery Page Builder Addons by Livemesh是livemesh个人开发者的WordPress页面构建器的扩展组件。 livemesh WPBakery Page Builder Addons by Livemesh 3.9.4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。

CVSS 6.5 · Medium EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
Livemesh Livemesh Addons for WPBakery Page Builder n/a≤ 3.9.4 affected
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I. Basic Information for CVE-2026-57754

Vulnerability Information
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Vulnerability Title
WordPress Livemesh Addons for WPBakery Page Builder plugin <= 3.9.4 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Contributor Cross Site Scripting (XSS) in Livemesh Addons for WPBakery Page Builder <= 3.9.4 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
livemesh WPBakery Page Builder Addons by Livemesh 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
livemesh WPBakery Page Builder Addons by Livemesh是livemesh个人开发者的WordPress页面构建器的扩展组件。 livemesh WPBakery Page Builder Addons by Livemesh 3.9.4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
Livemesh Livemesh Addons for WPBakery Page Builder n/a ~ 3.9.4 -

II. Public POCs for CVE-2026-57754

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III. Intelligence Information for CVE-2026-57754

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Vendor Advisories for CVE-2026-57754 (1)

IV. Related Vulnerabilities

Same product: Livemesh Addons for WPBakery Page Builder
Same vendor: Livemesh
Same weakness: CWE-79

V. Comments for CVE-2026-57754

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