Medium severity · published Jun 3, 2025
CVE-2025-3662
FancyBox for WordPress < 3.3.6 - Unauthenticated Stored XSS
6.1
CVSS
0.2%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
FancyBox for WordPress ·
before 3.3.6 · source: vendor
FA
Fancybox · Colorlib
before 3.3.6 · source: NVD