CVE-2026-22182 wpDiscuz before 7.6.47 - Unauthenticated Email Notification Flood via wpdCheckNotificationType
Unauthenticated attackers can flood subscribers with notification emails by exploiting missing checks in the wpDiscuz plugin, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-22182?
CVE-2026-22182 is a high-severity denial of service vulnerability in gVectors wpDiscuz, published on 13 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-22182?
It affects 1 product.
Products include Gvectors Wpdiscuz.
How do I fix CVE-2026-22182?
No fix has been published for CVE-2026-22182 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-22182 being exploited?
There is no known exploitation of CVE-2026-22182 in the wild and no public exploit code.
Other vulnerabilities in gVectors wpDiscuz
- CVE-2020-24186 File upload in n/a
- CVE-2024-9488 Comments – wpDiscuz <= 7.6.24 - Authentication Bypass via WordPress.com OAuth provider
- CVE-2020-13640 SQL injection in n/a
- CVE-2026-22193 wpDiscuz before 7.6.47 - SQL Injection in getAllSubscriptions()
- CVE-2026-22192 Voltronic Power SNMP Web Pro 1.1 Authentication Bypass via localStorage
Sources
Also known as GHSA-pxx3-v286-jcrq.