Vulnerability details
CVE-2026-22241
gunet openeclass
Open eClass has Unrestricted File Upload that Leads to Remote Code Execution (RCE)
CVSS 4.0
7.3High
Official description
The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system. The main cause of the issue is that no validation or sanitization of the file's present inside the zip archive. This leads to remote code execution on the web server. Version 4.2 patches the issue.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.3High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| gunet | openeclass | < 4.2 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9 x_refsource_MISC
- https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg x_refsource_CONFIRM
- https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r x_refsource_MISC
- https://twelvesec.com/2026/01/16/rce-via-arbitrary-file-upload-at-open-eclass/
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Details
- Published
- 2026-01-08
- Last updated
- 2026-01-23
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
3.26%
Probability of exploitation in 30 days
88.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-434Unrestricted Upload of File with Dangerous Type