CVE-2026-3748CWE-284CWE-434

Bytedesk SVG File UploadRestController.java uploadFile unrestricted upload

Medium · published March 8, 2026

CVSS v4.0
5.3
EPSS
1%
Percentile
52.2
In the wild
Unconfirmed
What it is

A security flaw has been discovered in Bytedesk up to 1.3.9. This affects the function uploadFile of the file source-code/src/main/java/com/bytedesk/core/upload/UploadRestController.java of the component SVG File Handler. Performing a manipulation results in unrestricted upload. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.4.5.1 is able to mitigate this issue. The patch is named 975e39e4dd527596987559f56c5f9f973f64eff7. Upgrading the affected component is recommended.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00687 · 52.2th percentile
Weaknesses
CWE-284 · Improper Access Control; CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-03-08T16:02Z
EPSS history
Timeline
  • 08 MAR 16:02Z
    Bytedesk SVG File UploadRestController.java uploadFile unrestricted upload
    cvelistv5