XSS in Muffingroup Betheme
CVE-2025-3077
The Betheme theme for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Button shortcode and Custom CSS field in all versions up to, and including, 28.0.3 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: 0.003 (20.8th 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
- Muffingroup Betheme — versions 0
Weakness classification (CWE)
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Product)
- security@wordfence.com (Release Notes)
Frequently asked questions
- What is CVE-2025-3077?
- CVE-2025-3077 is a medium-severity vulnerability in Muffingroup Betheme, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-04-16.
- How severe is CVE-2025-3077?
- Medium severity. CVSS v3 base score is 6.4 out of 10.