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

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• wpDiscuz Changelog patchProductRelease Notes
• wpDiscuz productProduct
• VulnCheck Advisory: wpDiscuz before 7.6.47 - Unsanitized Cookie Email Used as wp_mail() Recipient third-party-advisoryThird Party Advisory