High severity8.2NVD Advisory· Published Oct 22, 2026
CVE-2022-51021
CVE-2022-51021
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.
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Affected products
1Patches
Vulnerability mechanics
References
4- github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/notificationx-sqli.yamlnvd
- wordpress.org/plugins/notificationx/nvd
- wpscan.com/vulnerability/d1480717-726d-4be2-95cb-1007a3f010bbnvd
- www.vulncheck.com/advisories/notificationx-wordpress-plugin-2.3.12-unauthenticated-sql-injection-via-notification-rest-endpointnvd
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