CVE-2026-2133
Published: 08 February 2026
Summary
CVE-2026-2133 is a high-severity Improper Access Control (CWE-284) vulnerability in Fabian Online Music Site. Its CVSS base score is 7.3 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 5.8th 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 remote exploitation (T1190) and facilitates web shell deployment for execution/persistence (T1100).
NVD Description
A weakness has been identified in code-projects Online Music Site 1.0. Impacted is an unknown function of the file /Administrator/PHP/AdminUpdateCategory.php. This manipulation of the argument txtimage causes unrestricted upload. The attack is possible to be carried out remotely. The exploit…
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has been made available to the public and could be used for attacks.
Deeper analysisAI
CVE-2026-2133 is an unrestricted file upload vulnerability in code-projects Online Music Site 1.0. The issue affects an unknown function within the file /Administrator/PHP/AdminUpdateCategory.php, where manipulation of the txtimage argument enables the upload of arbitrary files. 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) and is associated with CWE-284 (Improper Access Control) and CWE-434 (Unrestricted Upload of File with Dangerous Type). It was published on 2026-02-08.
Remote attackers can exploit this vulnerability without authentication or user interaction, requiring only low complexity over the network. Successful exploitation allows limited impacts on confidentiality, integrity, and availability, potentially enabling attackers to upload malicious files that could lead to further compromise depending on server configuration.
Advisories and details are available via references including the project site at https://code-projects.org/, a GitHub issue at https://github.com/Volije/cve2/issues/1, and VulDB entries at https://vuldb.com/?ctiid.344768, https://vuldb.com/?id.344768, and https://vuldb.com/?submit.747213. An exploit is publicly available and could be used for attacks.
Details
- CWE(s)