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CVE-2026-22204 Details

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.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CNA: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://wordpress.org/plugins/wpdiscuz/	[email protected]	Product
https://wordpress.org/plugins/wpdiscuz/#developers	[email protected]	ProductRelease Notes
https://www.vulncheck.com/advisories/wpdiscuz-before-unsanitized-cookie-email-used-as-wp-mail-recipient	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-Other	Weakness Not in a Standard CWE Category	[email protected]
CWE-20	Improper Input Validation	[email protected]

Affected Products

Product	Versions
gvectors wpdiscuz	< 7.6.47
CPE cpe:2.3:a:gvectors:wpdiscuz::::::wordpress::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Mar 17, 2026	Initial Analysis	[email protected]
Mar 13, 2026	New CVE Received	[email protected]