CVE-2026-3748

Name: CVE-2026-3748
Creator: NVD / NIST
Published: 2026-03-08T16:16:02.02+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.1/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2026-3748 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. 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. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

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

CVSS 4.0

2.1/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.48%

37.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Bytedesk	Bytedesk	< 1.4.5.1

References

https://github.com/Bytedesk/bytedesk/Product
https://github.com/Bytedesk/bytedesk/commit/975e39e4dd527596987559f56c5f9f973f64eff7Patch
https://github.com/Bytedesk/bytedesk/issues/18Exploit, Issue Tracking, Vendor Advisory
https://github.com/Bytedesk/bytedesk/issues/18#issue-3993448721Exploit, Issue Tracking, Vendor Advisory
https://github.com/Bytedesk/bytedesk/issues/18#issuecomment-3976672973Exploit, Issue Tracking, Vendor Advisory
https://github.com/Bytedesk/bytedesk/releases/tag/v1.4.5.1Release Notes
https://vuldb.com/?ctiid.349726Permissions Required
https://vuldb.com/?id.349726Third Party Advisory, VDB Entry
https://vuldb.com/?submit.768028Third Party Advisory, VDB Entry

Timeline

Published: Mar 8, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3748?

How severe is CVE-2026-3748?

CVE-2026-3748 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3748?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3748?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST