What is CVE-2021-47966?

CVE-2021-47966 is a high-severity vulnerability in Timeclock Php, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-05-15.

How severe is CVE-2021-47966?

High severity. CVSS v3 base score is 8.2 out of 10.

SQL Injection in Timeclock Php

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 r…

Vulnerability class: SQL Injection

EPSS: 0.001 (25.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Timeclock Php — versions 1.04

Weakness classification (CWE)

CWE-89 — SQL Injection

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2021-47966?: CVE-2021-47966 is a high-severity vulnerability in Timeclock Php, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-05-15.
How severe is CVE-2021-47966?: High severity. CVSS v3 base score is 8.2 out of 10.