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CVE-2026-107765— Discussion Board <= 2.6.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via User Profile Website (user_url) Field

Quick assessment

Affected
marketingfire Discussion Board – WordPress Forum 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 的 "Discussion Board – WordPress Forum Plugin" 插件在 2.6.0 及更早版本中存在存储型跨站脚本（Stored XSS）漏洞。该漏洞源于 回调函数（已挂钩至 ）在输出时未进行充分转义：该函数将未经处理的 字段值直接插入到单引号包裹的 属性中，而未使用 或 进行安全过滤。因此，拥有订阅者（Subscriber）及以上权限的已认证攻击者，可在包含其回复的 Discussion Board 主题页面中注入任意 Web 脚本；当其他用户访问这些主题时，注入的

CVSS 6.4 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-107765

Vulnerability Information
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Vulnerability Title
Discussion Board <= 2.6.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via User Profile Website (user_url) Field
Source: CVE Program / CVE List V5
Vulnerability Description
The Discussion Board – WordPress Forum Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.6.0 via the user profile Website (user_url) field. This is due to insufficient output escaping in the ctdb_filter_comment_author_name() callback hooked to get_comment_author_link, which interpolates the raw user_url value into a single-quoted href attribute without esc_url() or esc_attr(). 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 a Discussion Board topic containing the attacker's reply.
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
marketingfire Discussion Board – WordPress Forum Plugin 0 ~ 2.6.0 -

II. Public POCs for CVE-2026-107765

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III. Intelligence Information for CVE-2026-107765

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Other References for CVE-2026-107765 (5)

IV. Related Vulnerabilities

Same product: Discussion Board – WordPress Forum Plugin
Same vendor: marketingfire
Same weakness: CWE-79