CVE-2026-3749
Last modified
CVE-2026-3749 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A weakness has been identified in Bytedesk up to 1.3.9. This vulnerability affects the function handleFileUpload of the file source-code/src/main/java/com/bytedesk/core/upload/UploadRestService.java of the component SVG File Handler. EPSS estimates a 0.42% chance of exploitation in the next 30 days.
Description
A weakness has been identified in Bytedesk up to 1.3.9. This vulnerability affects the function handleFileUpload of the file source-code/src/main/java/com/bytedesk/core/upload/UploadRestService.java of the component SVG File Handler. Executing a manipulation can lead to unrestricted upload. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.4.5.1 is able to resolve this issue. This patch is called 975e39e4dd527596987559f56c5f9f973f64eff7. It is recommended to upgrade the affected component.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bytedesk | Bytedesk | < 1.4.5.1 |
References
- https://github.com/Bytedesk/bytedesk/issues/19Exploit, Vendor Advisory
- https://github.com/Bytedesk/bytedesk/issues/19#issue-3993480676Exploit, Vendor Advisory
- https://github.com/Bytedesk/bytedesk/issues/19#issuecomment-3976672845Exploit, Vendor Advisory
- https://vuldb.com/?ctiid.349727Permissions Required, VDB Entry
- https://vuldb.com/?id.349727Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.768030Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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