What’s Vulnerable › Vulnerabilities

CVE-2025-9887: Custom Login And Signup Widget <= 1.0 - Cross-Site Request Forgery

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-20 · updated 2026-06-17
• Weakness: CWE-352

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 products

• bittokazi Custom Login And Signup Widget: through 1.0

References

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

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