WordPress plugin
Browser Sniff security & vulnerabilities
Unpatched vulnerability in the latest version
At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.
- Critical0
- High0
- Medium1
- Low0
All Browser Sniff vulnerabilities
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Browser Sniff: common questions
Does Browser Sniff have known vulnerabilities?
Yes. VulnCrest Radar lists 1 known vulnerability in Browser Sniff: 1 medium. At least one is not fixed in the latest version.
How do I check which version of Browser Sniff I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Browser Sniff vulnerability?
CVE-2025-9883, published Sep 19, 2025: Browser Sniff <= 2.3 - Cross-Site Request Forgery to Stored Cross-Site Scripting. Severity: Medium (CVSS 6.1).
Is any Browser Sniff vulnerability listed in CISA KEV?
No. None of the known Browser Sniff vulnerabilities is currently listed in the CISA KEV catalog.