CVE-2025-56515

HIGH

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published10/1/2025

Last Modified10/15/2025

Sourcenvd

Honeypot Sightings0

Affected Products

suisuijiang:fiora

Weaknesses (CWE)

CWE-79CWE-434

References

https://fiora.suisuijiang.com/(cve@mitre.org)

https://github.com/Kov404/CVE-2025-56515/tree/main(cve@mitre.org)

https://github.com/yinxin630/fiora(cve@mitre.org)

IOC Correlations

No correlations recorded

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