CVE-2021-3239
9.8
CRITICAL · CVSS 3.1 · EPSS 18.4% (pctl 97)
Patch early
EPSS 18.4% — above the 10% action threshold.
Description
E-Learning System 1.0 suffers from an unauthenticated SQL injection vulnerability, which allows remote attackers to execute arbitrary code on the hosting web server and gain a reverse shell.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 18.39% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-89 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-02-15 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| e-learning system project | e-learning system |
References
- https://github.com/TCSWT/E-Learning-System/blob/main/README.md
- https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/janobe/CVE-nu11-101821
- https://packetstormsecurity.com/files/160966/E-Learning-System-1.0-SQL-Injection-Shell-Upload.html
- https://www.exploit-db.com/exploits/49434
- https://www.sourcecodester.com/php/12808/e-learning-system-using-phpmysqli.html
- https://github.com/TCSWT/E-Learning-System/blob/main/README.md
- https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/janobe/CVE-nu11-101821
- https://packetstormsecurity.com/files/160966/E-Learning-System-1.0-SQL-Injection-Shell-Upload.html
- https://www.exploit-db.com/exploits/49434
- https://www.sourcecodester.com/php/12808/e-learning-system-using-phpmysqli.html
→ the Explorer · watch your stack · NVD