Vulnerability · Published Oct 22, 2026 · Assigned by VulnCheck

CVE-2022-51021NotificationX WordPress Plugin < 2.3.12 Unauthenticated SQL Injection via notification REST endpoint

High 8.2

In plain English

A high-severity SQL injection in NotificationX from WPDeveloper. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.5%top 59.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

NotificationX plugin for WordPress 2.0.0 before 2.3.12 contains an unauthenticated SQL injection vulnerability that allows remote attackers to manipulate database queries by supplying an array-form 'id' parameter to /wp-json/notificationx/v1/notification/{id}. Attackers can pass id[1] with crafted SQL, such as time-based SLEEP payloads, along with an api_key derived from md5(home_url()), which flows unsanitized into Database::get_where_query to extract database contents. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18.

Affected products (as reported)

Vendor	Product	Versions
WPDeveloper	NotificationX	2.0.0 – before 2.3.12

Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

References

WPScan d1480717 third-party-advisory
Nuclei Template technical-description
WordPress Download Page product
VulnCheck Advisory: NotificationX WordPress Plugin < 2.3.12 Unauthenticated SQL Injection via notification REST endpoint third-party-advisory