Flatsome: Cross-site scripting
Flatsome is affected by cross-site scripting. Exploitation requires at least contributor-level access. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- Flatsome
- Plugin slug
flatsome- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Sep 05, 2025
This CVE was published Sep 05, 2025 and is one of 11 known issues for this theme.
Patch or disable the affected component.
Update Flatsome to a release outside the affected range, or disable and remove it until a fixed version is available.
Technical description
The Flatsome Theme for WordPress is vulnerable to Stored Cross-Site Scripting via the theme's shortcodes in all versions up to, and including, 3.20.0 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N