CVE-2025-9621 WidgetPack Comment System <= 1.6.1 - Cross-Site Request Forgery
Unauthenticated attackers can trick administrators into triggering comment synchronization events via forged requests in the WidgetPack Comment System plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-9621?
CVE-2025-9621 is a medium-severity vulnerability in WidgetPack Comment System, published on 11 Oct 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The WidgetPack Comment System plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.6.1. This is due to missing or incorrect nonce validation on the wpcmt_sync action in the wpcmt_request_handler function. This makes it possible for unauthenticated attackers to trigger comment synchronization events via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Weakness: CWE-352
Which versions are affected by CVE-2025-9621?
How do I fix CVE-2025-9621?
No fix has been published for CVE-2025-9621 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-9621 being exploited?
There is no known exploitation of CVE-2025-9621 in the wild and no public exploit code.
Sources
Also known as GHSA-4xpg-9rh8-mfrj.