CVE-2026-22204 MEDIUM

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

Vendor Gvectors
Product wpDiscuz
Weakness CWE-20 · Input validation
Published March 13, 2026
Last update March 13, 2026

CVSS base score

6.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 13, 2026 CVE published
March 13, 2026 Record updated