CVE-2021-47966

May 15, 2026, 7:16 p.m.

8.8
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.

Product(s) Impacted

Vendor Product Versions
Php Timeclock
  • Php Timeclock
  • 1.04

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a php_timeclock php_timeclock 1.04 / / / / / / /

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

Tags

CWE-89
[email protected]
2026-05-15
CVE-2021-47966

CVSS Score

8.8 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: NONE
  • Privileges Required: NONE
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: HIGH
  • Integrity Impact: LOW
  • Availability Impact: NONE
  • Exploit Maturity: NOT_DEFINED

    • CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    View Vector String

Timeline

Published: May 15, 2026, 7:16 p.m.
Last Modified: May 15, 2026, 7:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.