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CVE-2026-22209— wpDiscuz before 7.6.47 - Cross-Site Scripting via Unescaped Custom CSS in Style Tag

Quick assessment

Affected
gVectors wpDiscuz
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和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin wpDiscuz 7.6.47之前版本存在跨站脚本漏洞，该漏洞源于样式标签转义不足，可能导致跨站脚本攻击。

CVSS 5.5 · Medium EPSS 0.22% · P13

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 2

VendorProduct Version RangeStatus
gVectors wpDiscuz < 7.6.47 affected
7.6.47 unaffected
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I. Basic Information for CVE-2026-22209

Vulnerability Information
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Vulnerability Title
wpDiscuz before 7.6.47 - Cross-Site Scripting via Unescaped Custom CSS in Style Tag
Source: CVE Program / CVE List V5
Vulnerability Description
wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like </style><script>alert(1)</script> in the custom CSS setting to execute arbitrary JavaScript in user browsers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/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 plugin wpDiscuz 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin wpDiscuz 7.6.47之前版本存在跨站脚本漏洞，该漏洞源于样式标签转义不足，可能导致跨站脚本攻击。
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
gVectors wpDiscuz 0 ~ 7.6.47 -

II. Public POCs for CVE-2026-22209

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III. Intelligence Information for CVE-2026-22209

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Vendor Advisories for CVE-2026-22209 (1)

News Coverage for CVE-2026-22209 (1)

Vendor Pages for CVE-2026-22209 (2)

Other References for CVE-2026-22209 (1)

Same Patch Batch · gVectors · 2026-03-13 · 11 CVEs total

CVE-2026-22193 8.1 HIGH wpDiscuz before 7.6.47 - SQL Injection in getAllSubscriptions()
CVE-2026-22202 8.1 HIGH wpDiscuz before 7.6.47 - Destructive GET Action Deletes All Comments by Email
CVE-2026-22182 7.5 HIGH wpDiscuz before 7.6.47 - Unauthenticated Email Notification Flood via wpdCheckNotification
CVE-2026-22216 6.5 MEDIUM wpDiscuz before 7.6.47 - No Rate Limiting on Subscription Endpoints with LIKE Wildcard Byp
CVE-2026-22183 6.1 MEDIUM wpDiscuz before 7.6.47 - Stored Cross-Site Scripting in Inline Comment Preview
CVE-2026-22201 5.3 MEDIUM wpDiscuz before 7.6.47 - IP Address Spoofing in getIP()
CVE-2026-22203 4.9 MEDIUM wpDiscuz before 7.6.47 - Options Export Leaks OAuth Secrets in Plaintext
CVE-2026-22210 4.4 MEDIUM wpDiscuz before 7.6.47 - Cross-Site Scripting via Unescaped Attachment URLs
CVE-2026-22215 4.3 MEDIUM wpDiscuz before 7.6.47 - Missing CSRF Protection on wpdGetFollowsPage
CVE-2026-22204 3.7 LOW wpDiscuz before 7.6.47 - Unsanitized Cookie Email Used as wp_mail() Recipient

IV. Related Vulnerabilities

Same product: wpDiscuz
Same vendor: gVectors
Same weakness: CWE-79

V. Comments for CVE-2026-22209

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