Is CVE-2026-22204 actively exploited?

No active exploitation of CVE-2026-22204 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-22204 be exploited remotely?

Yes. CVE-2026-22204 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-22204?

CVE-2026-22204 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-22204

CWE-20Published: March 13, 2026· Updated: Mar 17, 2026

5.3

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:16.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-22204 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.