🛡️ CVE-2025-3519

⚪ Unknown ✅ No Known Exploit CWE-639 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An authorization bypass in Unblu Spark allows a participant of a conversation to replace an existing, uploaded file.

Every uploaded file in Unblu gets assigned with a randomly generated Universally Unique ID (UUID). In case a participant of this or another conversation gets access to such a file ID, it can be used to replace the file without changing the file name and details or the name of the user who uploaded the file. During the upload, file interception and allowed file type rules are still applied correctly.

Weakness class

CVE-2025-3519 is classified as CWE-639: Authorization Bypass Through User-Controlled Key. An object is selected by an identifier from the request without checking the caller owns it.

Affected software

CVE-2025-3519 is recorded against 1 package.

  • unknown

Timeline and source

Published on 22 April 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.unblu.com

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-639
Public Exploit ✅ No
Source NVD
Published 2025-04-22
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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