CVE-2020-5237: 1up Oneupuploaderbundle

High severity, CVSS 8.8. EPSS: 3.9% chance of exploitation in the next 30 days.

Multiple relative path traversal vulnerabilities in the oneup/uploader-bundle before 1.9.3 and 2.1.5 allow remote attackers to upload, copy, and modify files on the filesystem (potentially leading to arbitrary code execution) via the (1) filename parameter to BlueimpController.php; the (2) dzchunkindex, (3) dzuuid, or (4) filename parameter to DropzoneController.php; the (5) qqpartindex, (6) qqfilename, or (7) qquuid parameter to FineUploaderController.php; the (8) x-file-id or (9) x-file-name parameter to MooUploadController.php; or the (10) name or (11) chunk parameter to PluploadController.php. This is fixed in versions 1.9.3 and 2.1.5.

Affected products

• 1up Oneupuploaderbundle: before 1.9.3 (fixed in 1.9.3); from 1.9.4, before 2.1.5 (fixed in 2.1.5)

Published 2020-02-05. Last modified 2026-06-17.