---
title: "NotificationX WordPress Plugin - Stored XSS"
description: "NotificationX WordPress plugin <= 3.3.3 contains a stored cross-site scripting caused by insufficient sanitization and escaping of the 'name' parameter, letting unauthenticated attackers inject scripts executed by users, exploit requires enabled WordPress.org Reviews campaign and placed dynamic block on public page."
url: https://panop.io/threat-heartbeat/CVE-2026-109513/
---

# CVE-2026-109513 NotificationX WordPress Plugin - Stored XSS

NotificationX WordPress plugin <= 3.3.3 contains a stored cross-site scripting caused by insufficient sanitization and escaping of the 'name' parameter, letting unauthenticated attackers inject scripts executed by users, exploit requires enabled WordPress.org Reviews campaign and placed dynamic block on public page.

CVSS base score 7.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-109513)

## Details

Type

Stored Xss

Impact

Stored Xss

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Published

16 October 2026

Updated

16 October 2026

Weakness

[CWE-79](https://cwe.mitre.org/data/definitions/79.html)

## Vendor fix

Update to the latest version beyond 3.3.3.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-109513](https://nvd.nist.gov/vuln/detail/CVE-2026-109513)
- [https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/includes/Extensions/PopupNotification/PopupNotification.php#L1119](https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/includes/Extensions/PopupNotification/PopupNotification.php#L1119)
- [https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/includes/Extensions/WordPress/WPOrgReview.php#L295](https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/includes/Extensions/WordPress/WPOrgReview.php#L295)
- [https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/includes/Features/ShortcodeInline.php#L148](https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/includes/Features/ShortcodeInline.php#L148)
- [https://plugins.trac.wordpress.org/changeset?reponame=&new=3746251%40notificationx%2Ftags%2F3.3.4&old=3720837%40notificationx%2Ftags%2F3.3.3](https://plugins.trac.wordpress.org/changeset?reponame=&new=3746251%40notificationx%2Ftags%2F3.3.4&old=3720837%40notificationx%2Ftags%2F3.3.3)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/cac6c4f3-ac60-45d6-a5ba-6708fc1491a4?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/cac6c4f3-ac60-45d6-a5ba-6708fc1491a4?source=cve)
- [https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/blocks/Blocks.php#L218](https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/blocks/Blocks.php#L218)
- [https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/includes/Core/Rest/Popup.php#L55](https://plugins.trac.wordpress.org/browser/notificationx/tags/3.3.3/includes/Core/Rest/Popup.php#L55)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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