CVE-2025-3662

MEDIUM

FancyBox for WordPress < 3.3.6 - Unauthenticated Stored Cross-Site Scripting in Caption and Title Attributes

Title source: llm

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

References (1)

Core 1

Core References

Exploit, Third Party Advisory exploit vdb-entry technical-description

https://wpscan.com/vulnerability/4cda12f0-3c23-44ad-80ea-db2443ebcf82/

Scores

CVSS v3 6.1

EPSS 0.0021

EPSS Percentile 11.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

colorlib/fancybox < 3.3.6

Published Jun 03, 2025

Tracked Since Feb 18, 2026