CVE-2025-56515
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-01

Last updated on: 2025-10-15

Assigner: MITRE

Description
File upload vulnerability in Fiora chat application 1.0.0 through user avatar upload functionality. The application fails to validate SVG file content, allowing malicious SVG files with embedded foreignObject elements containing iframe tags and JavaScript event handlers (onmouseover) to be uploaded and stored. When rendered, these SVG files execute arbitrary JavaScript, enabling attackers to steal user sessions, cookies, and perform unauthorized actions in the context of users viewing affected profiles.
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Meta Information
Published
2025-10-01
Last Modified
2025-10-15
Generated
2026-06-16
AI Q&A
2025-10-01
EPSS Evaluated
2026-06-15
NVD
CVE-2025-56515
EUVD
EUVD-2025-32705
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
suisuijiang fiora 1.0.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
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Executive Summary

This vulnerability is a file upload flaw in the Fiora chat application version 1.0.0, specifically in the user avatar upload feature. The application does not properly validate SVG file content, allowing attackers to upload malicious SVG files that contain embedded foreignObject elements with iframe tags and JavaScript event handlers like onmouseover. When these SVG files are rendered, the embedded JavaScript executes, enabling attackers to perform malicious actions.

Impact Analysis

The vulnerability can lead to attackers executing arbitrary JavaScript in the context of users viewing affected profiles. This can result in theft of user sessions and cookies, and allow attackers to perform unauthorized actions on behalf of the user, potentially compromising user accounts and data.

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