Cyber Resilience

CVE-2026-6189

Medium

Published: 13 April 2026

Published
13 April 2026
Modified
22 April 2026
KEV Added
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Patch
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CVSS Score v4 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
EPSS Score 0.0004 13.5th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-6189 is a medium-severity Injection (CWE-74) vulnerability in Sourcecodester (inferred from references). Its CVSS base score is 6.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 13.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2026-6189 is a SQL injection vulnerability (CWE-74, CWE-89) in SourceCodester Pharmacy Sales and Inventory System 1.0. The flaw resides in an unknown function within the file /ajax.php?action=login, where manipulation of the Username argument triggers the injection.

The vulnerability is exploitable remotely by unauthenticated attackers requiring low attack complexity and no user interaction, per its CVSS 3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L). Exploitation enables limited impacts on confidentiality, integrity, and availability.

Advisories and references include a GitHub issue at https://github.com/lingzezzz/lingze/issues/1 disclosing the exploit, VulDB submission and vulnerability details at https://vuldb.com/submit/797377, https://vuldb.com/vuln/357111, and https://vuldb.com/vuln/357111/cti, along with the vendor site at https://www.sourcecodester.com/. The exploit has been publicly disclosed.

EU & UK References

Vulnerability details

A vulnerability has been found in SourceCodester Pharmacy Sales and Inventory System 1.0. The affected element is an unknown function of the file /ajax.php?action=login. Such manipulation of the argument Username leads to sql injection. It is possible to launch the…

more

attack remotely. The exploit has been disclosed to the public and may be used.

CWE(s)
CWE-74CWE-89

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

SQL injection in a publicly accessible web application login endpoint (ajax.php) directly enables remote unauthenticated exploitation of a public-facing application.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-3150Shared CWE-74, CWE-89
CVE-2026-3746Shared CWE-74, CWE-89
CVE-2025-2683Shared CWE-74, CWE-89
CVE-2026-5238Shared CWE-74, CWE-89
CVE-2026-4288Shared CWE-74, CWE-89
CVE-2026-2220Shared CWE-74, CWE-89
CVE-2025-1535Shared CWE-74, CWE-89
CVE-2026-0597Shared CWE-74, CWE-89
CVE-2026-1688Shared CWE-74, CWE-89
CVE-2026-5018Shared CWE-74, CWE-89

Affected Assets

Sourcecodester
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly and comprehensively prevents SQL injection by validating the Username input to the /ajax.php?action=login function before database processing.

SI-2 Flaw Remediation good match
prevent

Mandates timely identification, reporting, and remediation of the specific SQL injection flaw in the login function of the Pharmacy Sales and Inventory System.

RA-5 Vulnerability Monitoring and Scanning partial match
preventdetect

Facilitates detection of SQL injection vulnerabilities like CVE-2026-6189 through scanning and drives patching to prevent exploitation.

References