What is CVE-2025-8684?

CVE-2025-8684 is a medium-severity vulnerability in Ux-Themes Flatsome, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-09-05.

How severe is CVE-2025-8684?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Ux-Themes Flatsome

CVE-2025-8684

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.

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

Ux-themes Flatsome — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-8684?: CVE-2025-8684 is a medium-severity vulnerability in Ux-Themes Flatsome, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-09-05.
How severe is CVE-2025-8684?: Medium severity. CVSS v3 base score is 6.4 out of 10.