CVE-2025-9883

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.

PUBLISHED Reserved 2025-09-02 | Published 2025-09-20 | Updated 2025-09-22 | Assigner Wordfence

Problem types

CWE-352 Cross-Site Request Forgery (CSRF)

Product status

Timeline

Credits

JohSka finder

References

www.wordfence.com/...-0812-47bc-bc62-d69280253e0a?source=cve

wordpress.org/plugins/browser-sniff/

plugins.trac.wordpress.org/...niff/tags/2.3/browsersniff.php

cve.org (CVE-2025-9883)

nvd.nist.gov (CVE-2025-9883)

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