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.
Published: 2026-10-22
Score: 8.8 High
EPSS: n/a
KEV: No
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Remediation

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Tracking

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Advisories

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History

Thu, 22 Oct 2026 11:00:00 +0000

Type Values Removed Values Added
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.
Title NotificationX WordPress Plugin < 2.3.12 Unauthenticated SQL Injection via notification REST endpoint
First Time appeared Wpdeveloper
Wpdeveloper notificationx
Weaknesses CWE-89
CPEs cpe:2.3:a:wpdeveloper:notificationx:*:*:*:*:*:wordpress:*:*
Vendors & Products Wpdeveloper
Wpdeveloper notificationx
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

Wpdeveloper Notificationx
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-22T10:57:32.517Z

Reserved: 2026-10-14T20:25:29.946Z

Link: CVE-2022-51021

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-22T11:17:04.990

Modified: 2026-10-22T17:40:46.877

Link: CVE-2022-51021

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T12:45:04Z

Weaknesses