CVE-2026-5534
Published: 05 April 2026
Summary
CVE-2026-5534 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 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-2026-5534 is a SQL injection vulnerability in itsourcecode Online Enrollment System 1.0. It affects an unknown function of the file /sms/user/index.php?view=edit&id=10 within the Parameter Handler component. The flaw stems from manipulation of the USERID argument, as classified under CWE-74 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-89 (SQL Injection). 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).
Remote attackers require no privileges or user interaction to exploit this issue via network access with low complexity. By injecting malicious payloads into the USERID parameter, attackers can execute arbitrary SQL commands, potentially achieving limited impacts to confidentiality (e.g., partial data exposure), integrity (e.g., minor data modification), and availability (e.g., minor service disruption).
Advisories referenced in VULDB entries (vuln/355287 and related CTI) and a GitHub issue detail the vulnerability and include a publicly available exploit. The vendor site at itsourcecode.com is also listed, though no specific patches or mitigation steps are described in the available information; security practitioners should review these sources for any updates on remediation.
The exploit is publicly available via GitHub and might be used in real-world attacks.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-19018
Vulnerability details
A vulnerability was identified in itsourcecode Online Enrollment System 1.0. This affects an unknown function of the file /sms/user/index.php?view=edit&id=10 of the component Parameter Handler. Such manipulation of the argument USERID leads to sql injection. The attack can be executed remotely.…
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The exploit is publicly available and might be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
This remote SQL injection vulnerability in a web application (Online Enrollment System) directly enables unauthenticated exploitation of a public-facing application via network access.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
SI-10 directly prevents SQL injection by requiring validation and sanitization of untrusted inputs like the USERID parameter.
SI-2 mandates identification and timely remediation of flaws, directly addressing this SQL injection vulnerability through patching.
RA-5 requires vulnerability scanning that would identify SQL injection flaws like CVE-2026-5534 in the Parameter Handler.