CVE-2025-15549

4.8 MEDIUM
Published: January 29, 2026 Modified: March 10, 2026
View on NVD

Description

FluentCMS 2026 contains a stored cross-site scripting vulnerability that allows authenticated administrators to upload SVG files with embedded JavaScript via the File Management module. Attackers can upload malicious SVG files that execute JavaScript in the browser of any user accessing the uploaded file URL.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/fluentcms/FluentCMS/issues/2404
Source: disclosure@vulncheck.com
Exploit Vendor Advisory
https://www.vulncheck.com/advisories/fluentcms-stored-xss-via-svg-upload-in-file-management
Source: disclosure@vulncheck.com
Third Party Advisory VDB Entry

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
4.8 / 10.0
EPSS (Exploit Probability)
0.0%
1th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

fluentcms