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CVE-2026-22204

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

Published: Mar 13, 2026Updated: Mar 17, 2026 Sources: CVE List NVDCWE-20
NVD MITRE
3.7CVSSLOW
EPSS Score
0.2%
Top 87.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-20NVD-CWE-Other

Affected Products

wpDiscuzgVectors
CMS Plugin
Web & CMS Plugins / wordpress-plugin
wpdiscuzgvectors
CMS Plugin
Web & CMS Plugins / wordpress-plugin
gvectorscommercialWeb & CMS Pluginsaka wpforo forum, wpdiscuz

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Mar 13, 2026
Last Updated
Mar 17, 2026

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