Cyber Resilience

CVE-2026-2173

Medium

Published: 08 February 2026

Published
08 February 2026
Modified
11 February 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: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
EPSS Score 0.0031 22.8th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-2173 is a medium-severity Injection (CWE-74) vulnerability in Fabian Online Examination 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 22.8th 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-2026-2173 is a SQL injection vulnerability (CWE-74, CWE-89) in code-projects Online Examination System 1.0. The flaw resides in an unknown functionality of the login.php file, where the username and password arguments can be manipulated to inject malicious SQL code. Published on 2026-02-08, it 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 low exploitation barriers.

Remote attackers require no privileges or user interaction to exploit this issue. By submitting crafted inputs to the username and password fields during login attempts, adversaries can execute arbitrary SQL queries, potentially leading to limited impacts on confidentiality (e.g., data exposure), integrity (e.g., data modification), and availability (e.g., denial of service).

Advisories from VulDB (ctiid.344874, id.344874, submit.749255) and the project site at code-projects.org provide further details; practitioners should consult these for any recommended patches, input validation fixes, or workarounds, as no specific mitigation steps are detailed in the CVE description.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

A vulnerability was identified in code-projects Online Examination System 1.0. Affected by this issue is some unknown functionality of the file login.php. The manipulation of the argument username/password leads to sql injection. The attack may be initiated remotely.

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?

Direct SQL injection in unauthenticated login.php of a publicly accessible web app enables remote exploitation of a public-facing application.

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

CVEs Like This One

CVE-2026-1422Same product: Fabian Online Examination System
CVE-2026-1423Same product: Fabian Online Examination System
CVE-2026-0851Same vendor: Fabian
CVE-2026-2060Same vendor: Fabian
CVE-2025-7186Same vendor: Fabian
CVE-2026-2197Same vendor: Fabian
CVE-2025-7189Same vendor: Fabian
CVE-2026-0592Same vendor: Fabian
CVE-2026-0607Same vendor: Fabian
CVE-2026-0568Same vendor: Fabian

Affected Assets

fabian
online examination system
1.0

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation of username/password inputs in login.php to block malicious SQL syntax before query execution.

SI-2 Flaw Remediation good match
prevent

Mandates timely remediation of the SQL injection flaw in the login.php code to eliminate the exploitable vulnerability.

AC-3 Access Enforcement partial match
prevent

Enforces correct access decisions during authentication so that injected SQL cannot bypass intended login controls.

References