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CRITICAL

CVE-2021-40595

CVSS v3

9.8

CRITICAL

EPSS Score

1.4 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

SQL injection vulnerability in Sourcecodester Online Leave Management System v1 by oretnom23, allows attackers to execute arbitrary SQL commands via the username parameter to /leave_system/classes/Login.php.

Technical details

Published
2022-01-21

Frequently asked questions

What is CVE-2021-40595?

SQL injection vulnerability in Sourcecodester Online Leave Management System v1 by oretnom23, allows attackers to execute arbitrary SQL commands via the username parameter to /leave_system/classes/Login.php.

Is CVE-2021-40595 actively exploited?

Active exploitation of CVE-2021-40595 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-40595?

CVE-2021-40595 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-40595 affecting your environment?

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