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TI-2026-75175 Aliases CVE-2026-110721GHSA-q86v-2x23-2567

Missing authorization in NotificationX allows content injection

Priority LOW 30CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

The NotificationX WordPress plugin up to and including 3.3.3 is affected. A REST route lacks an authorization check (CWE-862), so it accepts requests from users who are not logged in. An unauthenticated remote attacker can inject forged social-proof entries into enabled non-popup NotificationX campaigns, such as comment, sales and review notifications.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The NotificationX plugin for WordPress is vulnerable to Missing Authorization leading to arbitrary content injection in versions up to, and including, 3.3.3 The /notificationx/v1/popup-submit REST route is registered with permission_callback => '__return_true', and the handler at PopupNotification::handle_popup_submission() accepts an attacker-controlled nx_id, loads whichever NotificationX campaign that id points to, and copies that campaign's own source into the new entry without verifying that the campaign is a Popup Notification or Exit Intent Popup (the two sources this form is intended to serve). This makes it possible for unauthenticated attackers to inject forged social-proof entries (name, title, message, email, theme) into any enabled non-popup NotificationX campaign — WP Comments, WooCommerce/EDD/Give sales, reviews, etc.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00245 15th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wpdevteamNotificationX – FOMO, Live Sales Notification, WooCommerce Sales Popup, GDPR, Social Proof, Announcement Banner & Floating Notification Barup to 3.3.3—No fix listedCNA
  • NotificationX – FOMO, Live Sales Notification, WooCommerce Sales Popup, GDPR, Social Proof, Announcement Banner & Floating Notification Bar Vendorwpdevteam Affected up to 3.3.3 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for NotificationX.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-110721
  2. 2026-10-16 CISA SSVC decision points changed
  3. 2026-10-16 Alias added: GHSA-q86v-2x23-2567

References

Other 7

  • TI-2024-01579 SQL injection in wpdevteam NotificationX – FOMO, Live Sales Notification, WooCommerce… CVSS 3.1CRITICAL 9.8
  • TI-2023-15541 WordPress Essential Addons for Elementor Plugin 5.4.0-5.7.1 is vulnerable to Privilege Escalation CVSS 3.1CRITICAL 9.8
  • TI-2023-06070 Essential Blocks < 4.4.3 - Unauthenticated Local File Inclusion CVSS 3.1CRITICAL 9.8
  • TI-2023-11478 SQL injection in ReviewX WordPress Plugin CVSS 3.1HIGH 8.8
  • TI-2022-00275 NotificationX < 2.3.9 - Unauthenticated Blind SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2024-05197 Essential Blocks < 4.7.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
See all 209 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences