CVE-2026-5665
Published: 06 April 2026
Summary
CVE-2026-5665 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 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2026-5665 is a SQL injection vulnerability in code-projects Online FIR System 1.0, affecting an unknown functionality within the /Login/checklogin.php file of the Login component. The issue stems from manipulation of the email and password arguments, classified under CWE-74 and CWE-89. Published on 2026-04-06, 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 remote exploitability.
The vulnerability can be exploited remotely by unauthenticated attackers with low complexity and no user interaction required. Successful exploitation enables limited impacts on confidentiality, integrity, and availability, such as unauthorized data access or modification via injected SQL payloads in the login process. The exploit has been publicly disclosed and is available for use.
Advisories and references, including VulDB entries (vuldb.com/vuln/355488) and a GitHub repository detailing the SQL injection in the email parameter, provide exploit information but do not specify patches or mitigations in the available data. The project site (code-projects.org) and related submissions (vuldb.com/submit/786310) offer further context on the issue.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-19315
Vulnerability details
A security vulnerability has been detected in code-projects Online FIR System 1.0. Affected by this vulnerability is an unknown functionality of the file /Login/checklogin.php of the component Login. The manipulation of the argument email/password leads to sql injection. The attack…
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is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The SQL injection vulnerability in the public-facing /Login/checklogin.php component of a web application directly enables remote unauthenticated exploitation of the login process, mapping to T1190: Exploit Public-Facing Application.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation of email and password inputs in checklogin.php to block malicious SQL payloads, comprehensively preventing SQL injection exploitation.
Mandates timely identification, reporting, and remediation of the SQL injection flaw in the login component, addressing the root cause of CVE-2026-5665.
Requires vulnerability scanning that would identify the SQL injection vulnerability in /Login/checklogin.php, enabling proactive mitigation.