CVE-2021-47966
High
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.
SeverityHigh
CVSS8.2
Exploit probability—
ProductPHP Timeclock
PublishedMay 15, 2026
First seenMay 15, 2026
Weakness typeCWE-89SQL injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Timeclock PHP Timeclock | 1.04 | — |
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