What’s Vulnerable › Vulnerabilities

CVE-2025-13840: BUKAZU Search widget <= 3.3.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'shortcode' Shortcode Attribute

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-12 · updated 2026-10-07
• Weakness: CWE-79

Description

The BUKAZU Search widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'shortcode' parameter of the 'bukazu_search' shortcode in all versions up to, and including, 3.3.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• bobvanoorschot Bukazu Search Widget: through 3.3.2

References

• https://plugins.trac.wordpress.org/browser/bukazu-search-widget/tags/3.3.2/bukazu-widget.php#L277
• https://plugins.trac.wordpress.org/browser/bukazu-search-widget/trunk/bukazu-widget.php#L277
• https://plugins.trac.wordpress.org/changeset/3427947/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a666d0e4-4fa7-4794-b270-afbccf5036c6?source=cve

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