CVE-2026-3748

LOW EPSS 37.9%
Published Mar 8, 20263mo ago · Modified Jun 17, 20262w ago
2.1 CVSS 4.0
Low
Find Similar
Published Mar 8, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
2.1
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
37.9% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-284
CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt

Affected Products 1

VendorProductVersionRange
bytedeskbytedesk* <1.4.5.1

References 9

  • github.com https://github.com/Bytedesk/bytedesk/
    Product
  • github.com https://github.com/Bytedesk/bytedesk/commit/975e39e4dd527596987559f56c5f9f973f64eff7
    Patch
  • github.com https://github.com/Bytedesk/bytedesk/issues/18
    ExploitIssue TrackingVendor Advisory
  • github.com https://github.com/Bytedesk/bytedesk/issues/18#issue-3993448721
    ExploitIssue TrackingVendor Advisory
  • github.com https://github.com/Bytedesk/bytedesk/issues/18#issuecomment-3976672973
    ExploitIssue TrackingVendor Advisory
  • github.com https://github.com/Bytedesk/bytedesk/releases/tag/v1.4.5.1
    Release Notes
  • vuldb.com https://vuldb.com/?ctiid.349726
    Permissions Required
  • vuldb.com https://vuldb.com/?id.349726
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.768028
    Third Party AdvisoryVDB Entry

Remediation

  • github.com https://github.com/Bytedesk/bytedesk/commit/975e39e4dd527596987559f56c5f9f973f64eff7
    Patch