VulnerabilityAnalyzed
CVE-2020-37113
GUnet OpenEclass 1.7.3 allows authenticated users to bypass file extension restrictions when uploading files.
HIGH 8.7EPSS 0.81%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.81%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
GUnet OpenEclass 1.7.3 allows authenticated users to bypass file extension restrictions when uploading files. By renaming a PHP file to .php3 or .PhP, an attacker can upload a web shell and execute arbitrary code on the server. This vulnerability enables remote code execution by bypassing the intended file type checks in the exercise submission feature.
- CVSS 4.0
- 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.81% probability · 55th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- gunet/open eclass platform
- Source
- disclosure@vulncheck.com
References
- https://download.openeclass.org/files/docs/1.7/CHANGES.txtRelease Notes
- https://www.exploit-db.com/exploits/48163Exploit, Third Party Advisory, VDB Entry
- https://www.openeclass.org/Product
- https://www.vulncheck.com/advisories/gunet-openeclass-e-learning-platform-file-upload-extension-bypassThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.