CVE-2021-47966
HIGH
NVD
CVSS Score
8.2
Severity
HIGH
Published
May 15, 2026
Vendor
unknown
Description
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.