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CVE-2026-94376— Better Messages <= 3.0.4 - Authenticated (Subscriber+) Stored DOM-Based Cross-Site Scripting via User Display Name

Quick assessment

Affected
wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots
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 插件 “The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots” 存在存储型 DOM 驱动跨站脚本（Stored DOM-Based Cross-Site Scripting）漏洞。该漏洞影响所有 3.0.4 及更早版本，原因是输入清理和输出转义不足。攻击者只要拥有订阅者（Subscriber）级别或更高权限，即可在页面中注入任意 Web 脚本，当其他用户访问包含恶意脚本的页面时，这些脚本便会执行

CVSS 6.4 · Medium EPSS 0.19% · P8

Affected Version Matrix 1

VendorProduct Version RangeStatus
wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots ≤ 3.0.4 affected
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I. Basic Information for CVE-2026-94376

Vulnerability Information
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Vulnerability Title
Better Messages <= 3.0.4 - Authenticated (Subscriber+) Stored DOM-Based Cross-Site Scripting via User Display Name
Source: CVE Program / CVE List V5
Vulnerability Description
The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via User Display Name in all versions up to, and including, 3.0.4 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. This is exploitable by Subscriber-level users because WordPress core's sanitize_text_field() preserves HTML-entity-encoded payloads (e.g., an iframe srcdoc attribute), allowing the encoded string to be stored as a display name without requiring the unfiltered_html capability, and the plugin subsequently decodes it server-side before rendering.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots 0 ~ 3.0.4 -

II. Public POCs for CVE-2026-94376

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III. Intelligence Information for CVE-2026-94376

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Patches & Fixes for CVE-2026-94376 (1)

Security Blog Posts for CVE-2026-94376 (1)

IV. Related Vulnerabilities

Same product: Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots
Same vendor: wordplus
Same weakness: CWE-79

V. Comments for CVE-2026-94376

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