XSS in Beautifultemplates St Categories Widget
CVE-2025-11878
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (7.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Beautifultemplates St Categories Widget — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-11878?
- CVE-2025-11878 is a medium-severity vulnerability in Beautifultemplates St Categories Widget, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-10-22.
- How severe is CVE-2025-11878?
- Medium severity. CVSS v3 base score is 6.4 out of 10.