Vulnerability · Published Jun 3, 2025 · Assigned by WPScan

CVE-2025-3662FancyBox for WordPress < 3.3.6 - Unauthenticated Stored XSS

Medium 6.1

In plain English

A medium-severity security flaw in FancyBox for WordPress from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.3%top 82.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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 Montpas) escalated it to an Unauthenticated Stored XSS

Affected products (as reported)

Vendor	Product	Versions
Unknown	FancyBox for WordPress	0 – before 3.3.6

References

https://wpscan.com/vulnerability/4cda12f0-3c23-44ad-80ea-db2443ebcf82/ exploit, vdb-entry, technical-description