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CVE-2026-4610— ProfileGrid <= 5.9.9.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Message Content

Quick assessment

Affected
metagauss ProfileGrid – User Profiles, Groups and Communities
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.

metagauss ProfileGrid – User Profiles, Groups and Communities是metagauss个人开发者的用户资料、群组及社区管理插件。 metagauss ProfileGrid – User Profiles, Groups and Communities 5.9.9.2及之前版本存在跨站脚本漏洞，该漏洞源于对‘pm_author_message’参数的输入清理和输出转义不足，可能导致经身份验证的攻击者（至少拥有订阅者级别权限）在页面中注入任意Web脚本

CVSS 6.4 · Medium EPSS 0.35% · P26

Affected Version Matrix 1

VendorProduct Version RangeStatus
metagauss ProfileGrid – User Profiles, Groups and Communities ≤ 5.9.9.2 affected
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I. Basic Information for CVE-2026-4610

Vulnerability Information
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Vulnerability Title
ProfileGrid <= 5.9.9.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Message Content
Source: CVE Program / CVE List V5
Vulnerability Description
The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pm_author_message' parameter in the pm_send_message_to_author function in all versions up to, and including, 5.9.9.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability was partially patched in version 5.9.8.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
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
metagauss ProfileGrid – User Profiles, Groups and Communities 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
metagauss ProfileGrid – User Profiles, Groups and Communities是metagauss个人开发者的用户资料、群组及社区管理插件。 metagauss ProfileGrid – User Profiles, Groups and Communities 5.9.9.2及之前版本存在跨站脚本漏洞，该漏洞源于对‘pm_author_message’参数的输入清理和输出转义不足，可能导致经身份验证的攻击者（至少拥有订阅者级别权限）在页面中注入任意Web脚本
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
metagauss ProfileGrid – User Profiles, Groups and Communities 0 ~ 5.9.9.2 -

II. Public POCs for CVE-2026-4610

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III. Intelligence Information for CVE-2026-4610

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Patches & Fixes for CVE-2026-4610 (1)

Other References for CVE-2026-4610 (1)

IV. Related Vulnerabilities

Same product: ProfileGrid – User Profiles, Groups and Communities
Same vendor: metagauss
Same weakness: CWE-79

V. Comments for CVE-2026-4610

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