CVE-2026-3748
Remote exploitation of the attack is possible.
Does this matter?
Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own.
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 4.0
- 2.1 LOWCVSS: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/M
- EPSS
- 0.50% probability · 43th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-284, CWE-434
- Affected
- bytedesk/bytedesk
- Source
- cna@vuldb.com
EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.