CVE-2026-1423
Published: 26 January 2026
Summary
CVE-2026-1423 is a medium-severity Improper Access Control (CWE-284) vulnerability in Fabian Online Examination System. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 4.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
This control enforces ownership-based restrictions on portable storage device use, directly implementing access control over media insertion into organizational systems.
Hardware write-protect enforces access control on critical resources (e.g., firmware) independent of software state.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unrestricted file upload in a public-facing web app directly enables initial access via exploitation (T1190) and deployment of a web shell for persistence/RCE (T1505.003).
NVD Description
A vulnerability was determined in code-projects Online Examination System 1.0. Affected by this issue is some unknown functionality of the file /admin_pic.php. Executing a manipulation can lead to unrestricted upload. The attack may be performed from remote. The exploit has…
more
been publicly disclosed and may be utilized.
Deeper analysisAI
CVE-2026-1423 is a vulnerability in code-projects Online Examination System 1.0, affecting an unknown functionality within the /admin_pic.php file. The issue enables unrestricted file upload, classified under CWE-284 (Improper Access Control) and CWE-434 (Unrestricted Upload of File with Dangerous Type). It was published on 2026-01-26 with a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
A remote attacker with low privileges can exploit this vulnerability without user interaction to perform file uploads, potentially leading to remote code execution via unsafe file handling. Public disclosures, including a GitHub repository detailing the finding, confirm the exploit is available and may be utilized by threat actors targeting deployments of this system.
Advisories from VulDB (ctiid.342839, id.342839) and related submissions document the issue, along with references to the vendor site at code-projects.org. No patches or specific mitigations are detailed in the provided references.
Details
- CWE(s)