CVE-2021-47966

high

Published 2026-05-15 · Modified 2026-05-18

CVSS v3

8.2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CVSS v2

—

VIR risk

8.2

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.

Predictions

Exploit likelihood

88%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

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

CWEs

CWE-89

Verify integrity in audit chain (admin only). AS-IS.