CVE-2026-109513 NotificationX <= 3.3.3 - Unauthenticated Stored Cross-Site Scripting via 'name' Parameter via popup-submit REST Route

Q: What is CVE-2026-109513?

CVE-2026-109513 is a high-severity cross-site scripting vulnerability in wpdevteam NotificationX – FOMO, Live Sales Notification, WooCommerce Sales Popup, GDPR, Social Proof, Announcement Banner & Floating Notification Bar, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2026-109513 being exploited?

There is no known exploitation of CVE-2026-109513 in the wild and no public exploit code.

Q: How do I fix CVE-2026-109513?

No fix has been published for CVE-2026-109513 yet. Limit exposure of the affected software until one is available.

High 7.2 Published 16 Oct 2026 Updated 16 Oct 2026

Unauthenticated attackers can inject arbitrary scripts via the name parameter in NotificationX plugin, requiring specific admin configurations.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-109513?

CVE-2026-109513 is a high-severity cross-site scripting vulnerability in wpdevteam NotificationX – FOMO, Live Sales Notification, WooCommerce Sales Popup, GDPR, Social Proof, Announcement Banner & Floating Notification Bar, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The NotificationX – FOMO, Live Sales Notification, WooCommerce Sales Popup, GDPR, Social Proof, Announcement Banner & Floating Notification Bar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'name' parameter in all versions up to, and including, 3.3.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires that an administrator has previously enabled a WordPress.org Reviews campaign and placed the notificationx-pro/notificationx dynamic block on a public page, both of which are documented, supported plugin workflows.

Weakness: CWE-79

Which versions are affected by CVE-2026-109513?

How do I fix CVE-2026-109513?

No fix has been published for CVE-2026-109513 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-109513 being exploited?