High 8.2Published Oct 22, 2026

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

Updated under an hour ago (Oct 28, 2026, 11:20 PM ET)

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It affects WPDeveloper NotificationX. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.46%, higher than 40% of scored CVEs.

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Exploited in the last 30 days

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.

CVSS: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.46% (percentile 40)
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 23, 2026
First seen by InfoSec Signals: Oct 22, 2026

Affected products

Affected products

WPDeveloper NotificationX wpdeveloper:notificationx (from the name)	from 2.0.0 before 2.3.12	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.