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CVE-2025-9887

MEDIUM 4.3 CVSS 3.1
Published
September 20, 2025
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-352
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Description

The Custom Login And Signup Widget plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing or incorrect nonce validation in the /frndzk_adminclsw.php file. This makes it possible for unauthenticated attackers to change the email and username settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • bittokazi Custom Login And Signup Widget — Up to and including 1.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/custom-login-and-signup-widget/tags/1.0/frndzk_adminclsw.php#L3
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/f478db7f-6339-446e-b00d-0710707e679a?source=cve
  • nvd.nist.gov Official NVD record