What is CVE-2025-3662?

CVE-2025-3662 is a medium-severity vulnerability in Colorlib Fancybox, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-06-03.

How severe is CVE-2025-3662?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Colorlib Fancybox

CVE-2025-3662

The FancyBox for WordPress plugin before 3.3.6 does not escape captions and titles attributes before using them to populate galleries' caption fields. The issue was received as a Contributor+ Stored XSS, however one of our researcher (Marc…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (11.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Colorlib Fancybox
Unknown Fancybox For Wordpress — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2025-3662?: CVE-2025-3662 is a medium-severity vulnerability in Colorlib Fancybox, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-06-03.
How severe is CVE-2025-3662?: Medium severity. CVSS v3 base score is 6.1 out of 10.