CVE-2025-56515

High

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.

SeverityHigh
CVSS8.8
Exploit probability—
ProductSuisuijiang Fiora
PublishedOct 1, 2025
First seenOct 1, 2025

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
suisuijiang fiora1.0.0—
fioranpmNo range specified—

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