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CVE-2026-22204— wpDiscuz before 7.6.47 - Unsanitized Cookie Email Used as wp_mail() Recipient

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之前版本存在输入验证错误漏洞，该漏洞源于电子邮件标头注入，可能导致操纵邮件收件人。

CVSS 3.7 · Low EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-22204

Vulnerability Information
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Vulnerability Title
wpDiscuz before 7.6.47 - Unsanitized Cookie Email Used as wp_mail() Recipient
Source: CVE Program / CVE List V5
Vulnerability Description
wpDiscuz before 7.6.47 contains an email header injection vulnerability that allows attackers to manipulate mail recipients by injecting malicious data into the comment_author_email cookie. Attackers can craft a malicious cookie value that, when processed through urldecode() and passed to wp_mail() functions, enables header injection to alter email recipients or inject additional headers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin wpDiscuz 输入验证错误漏洞
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之前版本存在输入验证错误漏洞，该漏洞源于电子邮件标头注入，可能导致操纵邮件收件人。
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-2026-22204

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III. Intelligence Information for CVE-2026-22204

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Vendor Advisories for CVE-2026-22204 (1)

Vendor Pages for CVE-2026-22204 (2)

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-2026-22209 5.5 MEDIUM wpDiscuz before 7.6.47 - Cross-Site Scripting via Unescaped Custom CSS in Style Tag
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

IV. Related Vulnerabilities

Same product: wpDiscuz
Same vendor: gVectors
Same weakness: CWE-20

V. Comments for CVE-2026-22204

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