SQL Injection in Wpdeveloper Notificationx
CVE-2022-51021
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.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- wpscan.com/vulnerability/d1480717-726d-4be2-95cb-1007a3f010bb (third-party-advisory)
- github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wor… (technical-description)
- wordpress.org/plugins/notificationx/ (product)
- www.vulncheck.com/advisories/notificationx-wordpress-plugin-2.3.12-unauthentica… (third-party-advisory)
Frequently asked questions
- What is CVE-2022-51021?
- CVE-2022-51021 is a high-severity vulnerability in Wpdeveloper Notificationx, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-10-22.
- How severe is CVE-2022-51021?
- High severity. CVSS v3 base score is 8.2 out of 10.