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CVE-2026-15021— wpForo Forum <= 3.1.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'location' Profile Field

Quick assessment

Affected
tomdever wpForo Forum
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 wpForo Forum是WordPress基金会的一款基于人工智能的论坛插件。 WordPress wpForo Forum 3.1.1及之前版本存在跨站脚本漏洞，该漏洞源于对'location' Profile Field的输入清理和输出转义不足，导致容易受到存储型跨站脚本攻击，使得通过身份验证的攻击者（具有订阅者级别及以上权限）能够在页面中注入任意Web脚本，当用户访问受感染页面时执行这些脚本。

CVSS 6.4 · Medium EPSS 0.36% · P27

Affected Version Matrix 1

VendorProduct Version RangeStatus
tomdever wpForo Forum ≤ 3.1.1 affected
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I. Basic Information for CVE-2026-15021

Vulnerability Information
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Vulnerability Title
wpForo Forum <= 3.1.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'location' Profile Field
Source: CVE Program / CVE List V5
Vulnerability Description
The wpForo Forum plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'location' Profile Field in all versions up to, and including, 3.1.1 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 sanitize_text_field() function applied at input does not encode double quotes, allowing attribute breakout via a payload that escapes the href attribute context and injects event handler attributes.
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
WordPress wpForo Forum 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress wpForo Forum是WordPress基金会的一款基于人工智能的论坛插件。 WordPress wpForo Forum 3.1.1及之前版本存在跨站脚本漏洞，该漏洞源于对'location' Profile Field的输入清理和输出转义不足，导致容易受到存储型跨站脚本攻击，使得通过身份验证的攻击者（具有订阅者级别及以上权限）能够在页面中注入任意Web脚本，当用户访问受感染页面时执行这些脚本。
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
tomdever wpForo Forum 0 ~ 3.1.1 -

II. Public POCs for CVE-2026-15021

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III. Intelligence Information for CVE-2026-15021

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Vendor Pages for CVE-2026-15021 (1)

Other References for CVE-2026-15021 (1)

IV. Related Vulnerabilities

Same product: wpForo Forum
Same vendor: tomdever
Same weakness: CWE-79

V. Comments for CVE-2026-15021

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