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CVE-2022-51021

HIGH 8.8 CVSS 4.0
Published
October 22, 2026
Last modified
October 23, 2026
NVD status
Deferred
Reported by
disclosure@vulncheck.com
Weakness
CWE-89
CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Affected WordPress components

  • NotificationX – FOMO, Live Sales Notification, WooCommerce Sales Popup, GDPR, Social Proof, Announcement Banner & Floating Notification Bar Plugin · notificationx
    Confirmed match Active
    From 2.0.0 (including) to 2.3.12 (excluding)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • WPDeveloper NotificationX — From 2.0.0 (including) to 2.3.12 (excluding)

References

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