High 8.2Published May 15, 2026

CVE-2021-47966PHP Timeclock 1.04 SQL Injection via login.php

Updated under an hour ago (Oct 26, 2026, 9:00 PM ET)

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It affects Timeclock PHP Timeclock. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Timeclock PHP Timeclock

Exploited in the last 30 days

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: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: May 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Timeclock PHP Timeclock timeclock:php_timeclock (from the name)	1.04	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.