Cyber Resilience

CVE-2026-5034

MediumPublic PoC

Published: 29 March 2026

Published
29 March 2026
Modified
30 March 2026
KEV Added
—
Patch
—
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 0.0033 24.5th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-5034 is a medium-severity Injection (CWE-74) vulnerability in Sherlock Accounting System. 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 24.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

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

Deeper analysis

CVE-2026-5034 is a SQL injection vulnerability affecting code-projects Accounting System 1.0. The issue resides in unknown functionality of the file /edit_costumer.php within the Parameter Handler component, where manipulation of the cos_id argument triggers the injection.

Remote attackers require no privileges or user interaction to exploit this vulnerability over the network with low complexity. Successful exploitation enables limited impacts on confidentiality, integrity, and availability, as reflected in its CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).

Advisories and further details are available via references including https://code-projects.org/, https://github.com/Xu-Zhihan/CVE/issues/7, https://vuldb.com/submit/778594, https://vuldb.com/vuln/353960, and https://vuldb.com/vuln/353960/cti.

The exploit has been published and may be used, as noted in the CVE description published on 2026-03-29. The vulnerability maps to CWE-74 and CWE-89.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

A flaw has been found in code-projects Accounting System 1.0. Affected by this issue is some unknown functionality of the file /edit_costumer.php of the component Parameter Handler. This manipulation of the argument cos_id causes sql injection. It is possible to…

more

initiate the attack remotely. The exploit has been published 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 unauthenticated, remotely accessible web app component (/edit_costumer.php) directly enables initial access by exploiting a public-facing application (T1190).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-5035Same product: Sherlock Accounting System
CVE-2026-5033Same product: Sherlock Accounting System
CVE-2026-2116Shared CWE-74, CWE-89
CVE-2025-15436Shared CWE-74, CWE-89
CVE-2026-6148Shared CWE-74, CWE-89
CVE-2026-3792Shared CWE-74, CWE-89
CVE-2026-9447Shared CWE-74, CWE-89
CVE-2026-6153Shared CWE-74, CWE-89
CVE-2025-0699Shared CWE-74, CWE-89
CVE-2025-7218Shared CWE-74, CWE-89

Affected Assets

sherlock
accounting system
1.0

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

SI-10 directly prevents SQL injection by validating the cos_id parameter in /edit_costumer.php against malicious input.

SI-2 Flaw Remediation good match
prevent

SI-2 requires identification and correction of the specific SQL injection flaw in the Accounting System's Parameter Handler component.

SI-9 Information Input Restrictions good match
prevent

SI-9 restricts the cos_id argument to valid formats such as integers, blocking SQL injection manipulation attempts.

References