6.1Medium

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

FancyBox for WordPress Published: 2025-06-03 09:00 (1 year ago)

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

Weakness (CWE): CWE-79

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
colorlib	fancybox	< 3.3.6
—	FancyBox for WordPress	< 3.3.6

References and patches

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

CPE matches (NVD) (1)

cpe:2.3:a:colorlib:fancybox:*:*:*:*:*:wordpress:*:* < 3.3.6

CVSS score

6.1Medium

Source: CISA-ADP · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

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

All scores (2)

CISA-ADP	CVSS 3.1	6.1Medium
134c704f-9b21-4f2e-91b3-4a467353bcc0	CVSS 3.1	6.1Medium

EPSS (chance of exploitation in 30 days)

0.26%

higher than 18% of all CVEs

CISA assessment (SSVC)

Exploitation: poc
Automatable: no
Technical impact: partial

Timeline

ID reserved2025-04-15
Published2025-06-03 09:00
Reached IP-DB2026-10-25 00:03
Last updated2026-06-17 12:20

Assigned by (CNA): WPScan
NVD status: Analyzed

View at source: CVE.org · NVD

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