CVE-2026-3981
Published: 12 March 2026
Summary
CVE-2026-3981 is a medium-severity Injection (CWE-74) vulnerability in Unguardable Online Doctor Appointment 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 29.6th 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 SC-7 (Boundary Protection).
Deeper analysis
CVE-2026-3981 is a SQL injection vulnerability (CWE-74, CWE-89) in itsourcecode Online Doctor Appointment System 1.0. The issue affects an unknown function within the file /admin/doctor_action.php, where manipulation of the ID argument triggers the injection.
Attackers can exploit this remotely without authentication or user interaction, as indicated by the CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L). Successful exploitation allows limited impacts to confidentiality, integrity, and availability, with the attack possible over the network at low complexity.
Advisories and related details are available in references including VulDB entries (https://vuldb.com/?ctiid.350416, https://vuldb.com/?id.350416, https://vuldb.com/?submit.769613), a GitHub issue (https://github.com/vasable/automatic-parakeet/issues/1), and the vendor site (https://itsourcecode.com/). The exploit has been made public and could be used, per the CVE description published on 2026-03-12.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-11527
Vulnerability details
A vulnerability was found in itsourcecode Online Doctor Appointment System 1.0. Affected is an unknown function of the file /admin/doctor_action.php. Performing a manipulation of the argument ID results in sql injection. Remote exploitation of the attack is possible. The exploit…
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has been made public and could be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unauthenticated remote SQL injection in a web application directly enables initial access via exploitation of a public-facing application.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation and sanitization of untrusted inputs such as the ID parameter passed to /admin/doctor_action.php, blocking the SQL injection described in CVE-2026-3981.
Boundary protection mechanisms (e.g., WAF rules or input filtering at network interfaces) can inspect and block SQL injection payloads targeting the exposed doctor_action.php endpoint.
System monitoring can detect anomalous SQL syntax or error patterns generated by exploitation attempts against the vulnerable ID argument.