CVE-2026-3748HIGH 8.8EPSS p37.7%
CVE-2026-3748CVE-2026-3748
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.
Scoring
| CVSS 3.1 | 8.8 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.48% probability of exploitation · percentile 37.7% · 2026-06-19T12:03:05Z |
| Published | 2026-03-08 |
| Last modified | 2026-04-29 |
Underlying weaknesses· 2
References
- https://github.com/Bytedesk/bytedesk/
- https://github.com/Bytedesk/bytedesk/commit/975e39e4dd527596987559f56c5f9f973f64eff7
- https://github.com/Bytedesk/bytedesk/issues/18
- https://github.com/Bytedesk/bytedesk/issues/18#issue-3993448721
- https://github.com/Bytedesk/bytedesk/issues/18#issuecomment-3976672973
- https://github.com/Bytedesk/bytedesk/releases/tag/v1.4.5.1
- https://vuldb.com/?ctiid.349726
- https://vuldb.com/?id.349726
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Improper Access Controlcwe-284 | 0% | live |
| Weakness | Unrestricted Upload of File with Dangerous Typecwe-434 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.