CVE-2021-4400

MEDIUM 4.3CVE-2021-4400 · Published 01/07/2023 · updated 17/06/2026

In short

CVE-2021-4400 is a MEDIUM (CVSS 4.3) vulnerability affecting better search (webberzone).
Chance of exploitation in the next 30 days (EPSS): 0.39%, higher than 33.3% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
better search webberzone	`≤ 2.5.2`	No fix yet

Description

The Better Search plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.5.2. This is due to missing or incorrect nonce validation on the bsearch_process_settings_import() and bsearch_process_settings_export() functions. This makes it possible for unauthenticated attackers to import and export settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

References

blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks · Not Applicable
blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks · Not Applicable
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1 · Third Party Advisory
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2 · Not Applicable
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3 · Not Applicable
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4 · Not Applicable
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5 · Not Applicable
plugins.trac.wordpress.org/changeset · Patch

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