Cyber Resilience

CVE-2026-5540

Medium

Published: 05 April 2026

Published
05 April 2026
Modified
24 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-2026-5540 is a medium-severity Injection (CWE-74) vulnerability in Code Projects (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-2026-5540, published on 2026-04-05, is a SQL injection vulnerability in code-projects Simple Laundry System 1.0. It affects unknown code in the file /modifymember.php within the Parameter Handler component, where manipulation of the firstName argument triggers the issue (CWE-74, CWE-89). The vulnerability carries a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L), indicating high severity due to its network accessibility and lack of prerequisites.

Remote attackers can exploit this vulnerability without authentication or user interaction, requiring only low attack complexity. Successful exploitation enables SQL injection, allowing limited impacts on confidentiality, integrity, and availability.

Advisories referenced in VulDB entries (e.g., https://vuldb.com/vuln/355293) and a GitHub issue (https://github.com/boyslikesports/vul-web/issues/4) document the flaw, with the exploit publicly disclosed and potentially usable. The project site (https://code-projects.org/) provides context on the affected software, but no specific patches or mitigations are detailed in the available references.

EU & UK References

Vulnerability details

A vulnerability has been found in code-projects Simple Laundry System 1.0. This vulnerability affects unknown code of the file /modifymember.php of the component Parameter Handler. Such manipulation of the argument firstName leads to sql injection. The attack can be launched…

more

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?

Unauthenticated remote SQL injection in a web application directly enables initial access via exploitation of a public-facing app (T1190).

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

Code Projects
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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

SI-10 requires validation of the firstName parameter content and form prior to processing, directly preventing SQL injection in /modifymember.php.

SI-2 Flaw Remediation good match
prevent

SI-2 mandates timely remediation of flaws like this SQL injection vulnerability through patching or code fixes.

RA-5 Vulnerability Monitoring and Scanning partial match
detect

RA-5 vulnerability scanning identifies SQL injection issues such as CVE-2026-5540 in the Parameter Handler component.

References