CVE-2025-9883 Browser Sniff <= 2.3 - Cross-Site Request Forgery to Stored Cross-Site Scripting
Unauthenticated attackers can trick administrators into updating settings and injecting malicious scripts via CSRF in the Browser Sniff WordPress 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-2025-9883?
CVE-2025-9883 is a medium-severity vulnerability in bpedrassani Browser Sniff, published on 20 Sep 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 Browser Sniff plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.3. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts 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-2025-9883?
How do I fix CVE-2025-9883?
No fix has been published for CVE-2025-9883 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-9883 being exploited?
There is no known exploitation of CVE-2025-9883 in the wild and no public exploit code.
Sources
Also known as GHSA-64hx-q783-4qj2.