What’s Vulnerable › Vulnerabilities

CVE-2025-11878: ST Categories Widget <= 1.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-22 · updated 2026-10-08
• Weakness: CWE-79

Description

The ST Categories Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's st-categories shortcode in versions less than, or equal to, 1.0.0. This is 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

• beautifultemplates ST Categories Widget: through 1.0.0

References

• https://plugins.trac.wordpress.org/browser/st-category-wp/tags/1.0.0/st-categories-wp.php#L176
• https://www.wordfence.com/threat-intel/vulnerabilities/id/0d127114-9c80-4722-953a-3ee1382b9f81?source=cve

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