CVE-2025-58821 WordPress WP Notification Bell plugin <= 1.4.6 - Cross Site Scripting (XSS) vulnerability
An attacker can inject malicious scripts into the WP Notification Bell plugin, potentially compromising user sessions or site integrity.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-58821?
CVE-2025-58821 is a medium-severity cross-site scripting vulnerability in wpdever WP Notification Bell, published on 5 Sep 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpdever WP Notification Bell wp-notification-bell allows Stored XSS.This issue affects WP Notification Bell: from n/a through <= 1.4.6.
Weakness: CWE-79
Which versions are affected by CVE-2025-58821?
How do I fix CVE-2025-58821?
No fix has been published for CVE-2025-58821 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-2025-58821 being exploited?
There is no known exploitation of CVE-2025-58821 in the wild and no public exploit code.
Sources
Also known as GHSA-4p84-9c36-78c8.