CVE-2022-51021

HIGH 8.2

NotificationX WordPress Plugin < 2.3.12 Unauthenticated SQL Injection via notification REST endpoint

CVSS Score

8.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-89
Vendor	wpdeveloper
Product	notificationx
Published	Oct 22, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Affected Versions

WPDeveloper / NotificationX

2.0.0 < 2.3.12

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wpscan.com: https://wpscan.com/vulnerability/d1480717-726d-4be2-95cb-1007a3f010bb github.com: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/notificationx-sqli.yaml wordpress.org: https://wordpress.org/plugins/notificationx/ vulncheck.com: https://www.vulncheck.com/advisories/notificationx-wordpress-plugin-2.3.12-unauthenticated-sql-injection-via-notification-rest-endpoint

Credits

mikemyers 🔍 The Shadowserver Foundation