CVE-2026-22204: Gvectors Wpdiscuz

Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Gvectors Wpdiscuz: before 7.6.47 (fixed in 7.6.47)

Published 2026-03-13. Last modified 2026-06-17.