File upload vulnerability in Fiora chat application 1.0.0 through user avatar upload…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution, Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-434 and CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | fiora (npm) | — | — | No fix listed | GHSA-2c6j-vw6r-mfch |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- fiora (npm) Vendor— Affected — Fixed in — No fix listed GHSA-2c6j-vw6r-mfch
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:suisuijiang:fiora:1.0.0:*:*:*:*:*:*:* | 1.0.0 | Vulnerable | Suisuijiang |
- cpe:2.3:a:suisuijiang:fiora:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·Suisuijiang
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-56515
- 2026-10-03 Alias added: GHSA-2c6j-vw6r-mfch
References
More Suisuijiang Fiora vulnerabilities
- TI-2025-35359 Cross Site Scripting (XSS) vulnerability in Fiora chat application 1.0.0 allows executes… CVSS 3.1MEDIUM 5.4
Sources
- CVE-2025-56515 · CVE Program
- CVE-2025-56515 · NVD
- FIRST EPSS
- GHSA-2c6j-vw6r-mfch · GitHub Advisory Database · CC BY 4.0
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