CVE-2020-5237

Name: CVE-2020-5237
Creator: NVD / NIST
Published: 2020-02-05T14:15:11.527+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 3.93%

Last modified Jun 17, 2026

CVE-2020-5237 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 3.93% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.93%

89.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
1up	Oneupuploaderbundle	< 1.9.3
1up	Oneupuploaderbundle	>= 1.9.4, < 2.1.5

References

https://github.com/1up-lab/OneupUploaderBundle/commit/a6011449b716f163fe1ae323053077e59212350cPatch, Third Party Advisory
https://github.com/1up-lab/OneupUploaderBundle/security/advisories/GHSA-x8wj-6m73-gfqpThird Party Advisory
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-003.txtExploit, Third Party Advisory
https://github.com/1up-lab/OneupUploaderBundle/commit/a6011449b716f163fe1ae323053077e59212350cPatch, Third Party Advisory
https://github.com/1up-lab/OneupUploaderBundle/security/advisories/GHSA-x8wj-6m73-gfqpThird Party Advisory
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-003.txtExploit, Third Party Advisory

Timeline

Published: Feb 5, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5237?

How severe is CVE-2020-5237?

CVE-2020-5237 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 3.93% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5237?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-5237?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST