# CVE-2020-6144

## Summary

- **CVE ID:** CVE-2020-6144
- **Severity:** CRITICAL
- **CVSS Score:** 10 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-96
- **Published:** Sep 1, 2020
- **Last Modified:** Mar 14, 2026

## Description

A remote code execution vulnerability exists in the install functionality of OS4Ed openSIS 7.4. The username variable which is set at line 121 in install/Step5.php allows for injection of PHP code into the Data.php file that it writes. An attacker can send an HTTP request to trigger this vulnerability.

## Affected Products

- n/a — OS4Ed (OS4Ed openSIS 7.4)

## References

- [CNA](https://talosintelligence.com/vulnerability_reports/TALOS-2020-1083)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 10.78%
- **EPSS Percentile:** 93.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._