CVE-2026-22204

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.

CVSS v3 3.7 LOW

3.7^/10

CVSS v3 : LOW

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://wordpress.org/plugins/wpdiscuz/	Product
https://wordpress.org/plugins/wpdiscuz/#developers	Product Release Notes
https://www.vulncheck.com/advisories/wpdiscuz-before-unsanitized-cookie-email-used-as-wp-mail-recipient	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:*

History

17 Mar 2026, 11:47

Type	Values Removed	Values Added
References	~~() https://wordpress.org/plugins/wpdiscuz/ -~~	() https://wordpress.org/plugins/wpdiscuz/ - Product
References	~~() https://wordpress.org/plugins/wpdiscuz/#developers -~~	() https://wordpress.org/plugins/wpdiscuz/#developers - Product, Release Notes
References	~~() https://www.vulncheck.com/advisories/wpdiscuz-before-unsanitized-cookie-email-used-as-wp-mail-recipient -~~	() https://www.vulncheck.com/advisories/wpdiscuz-before-unsanitized-cookie-email-used-as-wp-mail-recipient - Third Party Advisory
CPE		cpe:2.3:a:gvectors:wpdiscuz::::::wordpress::*
First Time		Gvectors Gvectors wpdiscuz
CWE		NVD-CWE-Other

13 Mar 2026, 19:54

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-13 19:54

Updated : 2026-03-17 11:47

NVD link : CVE-2026-22204

Mitre link : CVE-2026-22204

CVE.ORG link : CVE-2026-22204

JSON object : View

Products Affected

gvectors

wpdiscuz

CWE

CWE-20

Improper Input Validation

NVD-CWE-Other

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