Description
A Stored Cross-Site Scripting (XSS) vulnerability was discovered in the File Management module of FluentCMS 1.2.3. The flaw allows an authenticated administrator to upload crafted SVG files containing malicious JavaScript code. Once uploaded, the script executes in the browser of any user who accesses the direct URL of the image, including unauthenticated visitors.
Published: 2026-05-12
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 12 May 2026 21:15:00 +0000

Type Values Removed Values Added
Title Stored XSS via SVG Upload in FluentCMS File Management

Tue, 12 May 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Fluentcms
Fluentcms fluentcms
Vendors & Products Fluentcms
Fluentcms fluentcms

Tue, 12 May 2026 16:45:00 +0000

Type Values Removed Values Added
Title Stored XSS via SVG Upload in FluentCMS File Management

Tue, 12 May 2026 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

ssvc

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


Tue, 12 May 2026 15:00:00 +0000

Type Values Removed Values Added
Description A Stored Cross-Site Scripting (XSS) vulnerability was discovered in the File Management module of FluentCMS 1.2.3. The flaw allows an authenticated administrator to upload crafted SVG files containing malicious JavaScript code. Once uploaded, the script executes in the browser of any user who accesses the direct URL of the image, including unauthenticated visitors.
References

Subscriptions

Fluentcms Fluentcms
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-12T15:41:34.710Z

Reserved: 2026-01-09T00:00:00.000Z

Link: CVE-2025-70842

cve-icon Vulnrichment

Updated: 2026-05-12T15:41:30.913Z

cve-icon NVD

Status : Deferred

Published: 2026-05-12T15:16:12.163

Modified: 2026-05-13T15:43:05.440

Link: CVE-2025-70842

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-12T21:00:13Z

Weaknesses