CVE-2025-3518

File upload functionality possible even when disabled

State: Published
Severity: 5.3 Medium
Published: Apr 22, 2025
Updated: Apr 24, 2025
Reserved: Apr 11, 2025

Description

It technically possible for a user to upload a file to a conversation despite the file upload functionality being disabled.

The file upload functionality can be enabled or disabled for specific use cases through configuration. In case the functionality is disabled for at least one use case, the system nevertheless allows files to be uploaded through direct API requests. During the upload file, interception and allowed file type rules are still applied correctly.

If file sharing is generally enabled, this issue is not of concern.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N	NCSC.ch

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
Unblu SparkUnblu inc.	7.54.1Not affected 8.13.1Not affected 7.0.0 through 7.53.4Affected 8.0.0 through 8.12.1Affected

References

https://www.unblu.com/en/docs/latest/security-bulletins/#UBL-2025-002

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