What’s Vulnerable › Vulnerabilities

CVE-2020-5237: Relative Path Traversal in oneup/uploader-bundle

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-02-05 · updated 2026-06-17
• Weakness: CWE-23

Description

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; from 1.9.4 before 2.1.5 — fixed in 1.9.3, 2.1.5

How to fix

Upgrade to a fixed version: 1Up Oneupuploaderbundle 1.9.3, 2.1.5. Check the vendor advisory for mitigations.

References

• https://github.com/1up-lab/OneupUploaderBundle/commit/a6011449b716f163fe1ae323053077e59212350c
• https://github.com/1up-lab/OneupUploaderBundle/security/advisories/GHSA-x8wj-6m73-gfqp
• https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-003.txt
• https://github.com/1up-lab/OneupUploaderBundle/commit/a6011449b716f163fe1ae323053077e59212350c
• https://github.com/1up-lab/OneupUploaderBundle/security/advisories/GHSA-x8wj-6m73-gfqp
• https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-003.txt

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