CVE-2021-47966

PHP Timeclock 1.04 contains time-based and boolean-based blind SQL injection vulnerabilities in the login_userid parameter of login.php that allows unauthenticated attackers to extract database contents. Attackers can submit crafted POST requests with SQL payloads using SLEEP functions or RLIKE conditional statements to dump sensitive database information including employee names and credentials.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
http://timeclock.sourceforge.net
https://sourceforge.net/projects/timeclock/files/PHP%20Timeclock/PHP%20Timeclock%201.04/
https://www.exploit-db.com/exploits/49849
https://www.vulncheck.com/advisories/php-timeclock-sql-injection-via-login-php

Configurations

No configuration.

History

15 May 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-15 19:16

Updated : 2026-05-18 17:33

NVD link : CVE-2021-47966

Mitre link : CVE-2021-47966

CVE.ORG link : CVE-2021-47966

JSON object : View

Products Affected

No product.

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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