{"id":"CVE-2026-3749","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-3749","generatedAt":"2026-10-28T04:16:11.697Z","title":"A weakness has been identified in Bytedesk up to 1.3.9.","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.","published":"2026-03-08T16:16:02.000Z","lastModified":"2026-06-17T10:44:08.000Z","status":"Analyzed","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":2.1,"severity":"LOW","vector":"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/M"},"cwe":["CWE-284","CWE-434"],"affected":["bytedesk/bytedesk"],"epss":{"score":0.00439,"percentile":0.37993,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.44%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/Bytedesk/bytedesk/","tags":["Product"],"source":"cna@vuldb.com"},{"url":"https://github.com/Bytedesk/bytedesk/commit/975e39e4dd527596987559f56c5f9f973f64eff7","tags":["Patch"],"source":"cna@vuldb.com"},{"url":"https://github.com/Bytedesk/bytedesk/issues/19","tags":["Exploit","Vendor Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/Bytedesk/bytedesk/issues/19#issue-3993480676","tags":["Exploit","Vendor Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/Bytedesk/bytedesk/issues/19#issuecomment-3976672845","tags":["Exploit","Vendor Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/Bytedesk/bytedesk/releases/tag/v1.4.5.1","tags":["Release Notes"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.349727","tags":["Permissions Required","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.349727","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?submit.768030","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-3749","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}