Unauthorized Data Modification in NotificationX Plugin by WordPress
CVE-2026-0554

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Notificationx – Fomo, Live Sales Notification, WooCommerce Sales Popup, Gdpr, Social Proof, Announcement Banner & Floating Notification Bar
Vendor
CVE Published:
20 January 2026

What is CVE-2026-0554?

The NotificationX plugin for WordPress has a security vulnerability that permits authenticated users with Contributor-level access or higher to bypass crucial permission checks on specific REST API endpoints ('regenerate' and 'reset'). This flaw allows these users to maliciously manipulate analytics for any NotificationX campaign, undermining the integrity of the data and potentially impacting website performance and reliability. All versions up to and including 3.1.11 are affected, emphasizing the need for immediate updates to mitigate risks.

Affected Version(s)

NotificationX – FOMO, Live Sales Notification, WooCommerce Sales Popup, GDPR, Social Proof, Announcement Banner & Floating Notification Bar 0 <= 3.1.11

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://research.cleantalk.org/cve-2026-0554
https://plugins.trac.wordpress.org/changeset?sfp_email=&s...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dmitrii Ignatyev
.