Cyber Resilience

CVE-2026-4235

Medium

Published: 16 March 2026

Published
16 March 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 14.2th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-4235 is a medium-severity Injection (CWE-74) vulnerability in Itsourcecode (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 14.2th 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-2026-4235 is a SQL injection vulnerability affecting itsourcecode Online Enrollment System 1.0. The issue arises in the processing of the /sms/login.php file, where manipulation of the user_email argument enables SQL injection. Published on 2026-03-16T14:20:17.717, it is associated with CWEs-74 and 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), allowing remote exploitation by unauthenticated attackers with low attack complexity and no user interaction required. Attackers can achieve low impacts on confidentiality, integrity, and availability, such as unauthorized data access or modification within the database.

Advisories and references, including VulDB entries (https://vuldb.com/?ctiid.351158, https://vuldb.com/?id.351158, https://vuldb.com/?submit.771240) and a GitHub issue (https://github.com/yuji0903/silver-guide/issues/11), document the issue, with an exploit publicly available for potential attacks. The vendor site is at https://itsourcecode.com/.

EU & UK References

Vulnerability details

A weakness has been identified in itsourcecode Online Enrollment System 1.0. This issue affects some unknown processing of the file /sms/login.php. This manipulation of the argument user_email causes sql injection. The attack is possible to be carried out remotely. The…

more

exploit has been made available to the public and could be used for attacks.

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 public-facing /sms/login.php enables unauthenticated remote exploitation of a web app for initial access and limited DB data manipulation.

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

Itsourcecode
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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 prevents SQL injection by validating the manipulated user_email argument in /sms/login.php.

SI-2 Flaw Remediation good match
preventrecover

Remediates the identified SQL injection flaw in itsourcecode Online Enrollment System 1.0 through timely patching or correction.

SI-9 Information Input Restrictions good match
prevent

Restricts user_email inputs to approved types, formats, and lengths to block SQL injection payloads.

References