CVE-2026-22204

MediumCVSS 5.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
gVectors	wpDiscuz	< 7.6.47

References

https://wordpress.org/plugins/wpdiscuz/Product
https://wordpress.org/plugins/wpdiscuz/#developersProduct, Release Notes
https://www.vulncheck.com/advisories/wpdiscuz-before-unsanitized-cookie-email-used-as-wp-mail-recipientThird Party Advisory

Timeline

Published: Mar 13, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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