CVE-2021-3239
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 18.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 18.87% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-89
- Affected
- e-learning system project/e-learning system
- Source
- cve@mitre.org
EPSS 18.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/TCSWT/E-Learning-System/blob/main/README.mdExploit, Third Party Advisory
- https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/janobe/CVE-nu11-101821Exploit, Third Party Advisory
- https://packetstormsecurity.com/files/160966/E-Learning-System-1.0-SQL-Injection-Shell-Upload.htmlExploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/49434Exploit, Third Party Advisory, VDB Entry
- https://www.sourcecodester.com/php/12808/e-learning-system-using-phpmysqli.htmlProduct, Third Party Advisory
- https://github.com/TCSWT/E-Learning-System/blob/main/README.mdExploit, Third Party Advisory
- https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/janobe/CVE-nu11-101821Exploit, Third Party Advisory
- https://packetstormsecurity.com/files/160966/E-Learning-System-1.0-SQL-Injection-Shell-Upload.htmlExploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/49434Exploit, Third Party Advisory, VDB Entry
- https://www.sourcecodester.com/php/12808/e-learning-system-using-phpmysqli.htmlProduct, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.