CVE-2025-3662

FancyBox for WordPress < 3.3.6 - Unauthenticated Stored XSS

Published Jun 3, 2025 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
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

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-16698 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
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00032}

epss

{'score': 0.00044}

Type Values Removed Values Added
First Time appeared Colorlib
Colorlib fancybox
Weaknesses CWE-79
CPEs cpe:2.3:a:colorlib:fancybox:*:*:*:*:*:wordpress:*:*
Vendors & Products Colorlib
Colorlib fancybox
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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
Title FancyBox for WordPress < 3.3.6 - Unauthenticated Stored XSS
References
Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Jun 3, 2025, 3:28 PM
Reserved
Apr 15, 2025, 7:54 PM
Status
Analyzed
Published
Jun 3, 2025, 6:15 AM
Modified
Jun 17, 2026, 9:20 AM