Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-22182

wpDiscuz before 7.6.47 contains an unauthenticated denial of service vulnerability that allows anonymous users to trigger mass notification emails by exploiting the checkNotificationType() function. Attackers can repeatedly call the wpdiscuz-ajax.php endpoint with arbitrary postId and comment_id parameters to flood subscribers with notifications, as the handler lacks nonce verification, authentication checks, and rate limiting.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 23.2%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-22182


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