Fiora chat group avatar is vulnerable to XSS via SVG files
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | fiora | = 1.0.0 | no fix |
References
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:P- Weakness (CWE)
CWE-79- Platform
- npm
- Package
fiora- Disclosed
- 01.10.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-2c6j-vw6r-mfch - CC BY 4.0
Vulnerability history: fiora
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 10.2025 10.2025
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- Low 2
Disclosures per year
- 2025: 2
- 2026: 0
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Fiora chat group avatar is vulnerable to XSS via SVG files this entry
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