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CVE-2026-84960— WP-Members Membership Plugin <= 3.5.6 - Reflected Cross-Site Scripting

Quick assessment

Affected
cbutlerjr WP-Members Membership Plugin
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 WP-Members Membership是WordPress基金会开源的一款提供会员注册、登录与内容访问控制功能的网站插件。 WordPress WP-Members Membership 3.5.6及之前版本存在跨站脚本漏洞，该漏洞源于URL查询字符串的输入清理和输出转义不足，可能导致反射型跨站脚本攻击；未经验证的攻击者可诱使用户访问特制URL并点击注册页面上的服务条款链接，从而注入任意Web脚本。

CVSS 6.1 · Medium EPSS 0.37% · P29

Affected Version Matrix 1

VendorProduct Version RangeStatus
cbutlerjr WP-Members Membership Plugin ≤ 3.5.6 affected
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I. Basic Information for CVE-2026-84960

Vulnerability Information
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Vulnerability Title
WP-Members Membership Plugin <= 3.5.6 - Reflected Cross-Site Scripting
Source: CVE Program / CVE List V5
Vulnerability Description
The WP-Members Membership Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL Query String in all versions up to, and including, 3.5.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Successful exploitation requires the victim to first visit the attacker-crafted URL and then click the Terms of Service link rendered on the resulting registration page.
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: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
WordPress WP-Members Membership 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress WP-Members Membership是WordPress基金会开源的一款提供会员注册、登录与内容访问控制功能的网站插件。 WordPress WP-Members Membership 3.5.6及之前版本存在跨站脚本漏洞，该漏洞源于URL查询字符串的输入清理和输出转义不足，可能导致反射型跨站脚本攻击；未经验证的攻击者可诱使用户访问特制URL并点击注册页面上的服务条款链接，从而注入任意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
cbutlerjr WP-Members Membership Plugin 0 ~ 3.5.6 -

II. Public POCs for CVE-2026-84960

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III. Intelligence Information for CVE-2026-84960

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Vendor Advisories for CVE-2026-84960 (1)

IV. Related Vulnerabilities

Same product: WP-Members Membership Plugin
Same vendor: cbutlerjr
Same weakness: CWE-79

V. Comments for CVE-2026-84960

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