CVE-2026-22204

LOW 3.7

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

CVSS Score

3.7

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-20
Vendor	gvectors
Product	wpdiscuz
Published	Mar 13, 2026
Last Updated	Mar 13, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

gVectors / wpDiscuz

0 < 7.6.47

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordpress.org: https://wordpress.org/plugins/wpdiscuz/#developers wordpress.org: https://wordpress.org/plugins/wpdiscuz/ vulncheck.com: https://www.vulncheck.com/advisories/wpdiscuz-before-unsanitized-cookie-email-used-as-wp-mail-recipient

Credits

Scott Moore - VulnCheck