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.
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References
History
Fri, 13 Mar 2026 02:00:00 +0000
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| Description | 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. | |
| Title | wpDiscuz before 7.6.47 - Unauthenticated Email Notification Flood via wpdCheckNotificationType | |
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Gvectors
Gvectors wpdiscuz |
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| Weaknesses | CWE-862 | |
| CPEs | cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:* | |
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cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-03-13T01:17:59.272Z
Reserved: 2026-01-06T16:47:17.182Z
Link: CVE-2026-22182
Vulnrichment
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