Cyber Resilience

CVE-2021-42169

CriticalPublic PoC

Published: 22 October 2021

Published
22 October 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0198 83.9th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-42169 is a critical-severity SQL Injection (CWE-89) vulnerability in Simple Payroll System With Dynamic Tax Bracket Project Simple Payroll System With Dynamic Tax Bracket. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 16.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

The Simple Payroll System with Dynamic Tax Bracket in PHP using SQLite Free Source Code (by: oretnom23 ) is vulnerable from remote SQL-Injection-Bypass-Authentication for the admin account. The parameter (username) from the login form is not protected correctly and there…

more

is no security and escaping from malicious payloads.

CWE(s)
CWE-89

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

simple payroll system with dynamic tax bracket project
simple payroll system with dynamic tax bracket
1.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-89

Penetration testing uses SQL injection payloads against database interfaces, identifying and supporting fixes for SQL injection weaknesses.

SI-10 Information Input Validation
addresses: CWE-89

Validates query inputs to prevent SQL syntax or command manipulation.

References