CVE-2023-0963
Published: 22 February 2023
Summary
CVE-2023-0963 is a high-severity Improper Access Control (CWE-284) vulnerability in Music Gallery Site Project Music Gallery Site. Its CVSS base score is 7.3 (High).
Operationally, ranked in the top 11.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A vulnerability rated critical exists in SourceCodester Music Gallery Site version 1.0, specifically within the POST Request Handler component's Users.php file. The flaw stems from improper access controls (CWE-284) that can be triggered through manipulation of requests, allowing unauthorized actions without authentication. It carries a CVSS 3.1 score of 7.3 reflecting network-accessible, low-complexity exploitation.
Unauthenticated remote attackers can initiate the attack against the affected application to bypass intended access restrictions and perform unauthorized operations on user-related functionality. Public proof-of-concept code demonstrating the issue has been released, confirming that the exploit is usable in practice.
EPSS scores for the CVE remained low after initial disclosure but rose materially to a peak of 0.0904 in January 2025 before receding to the current value of 0.0384, indicating renewed exploitation interest well after the original publication. No vendor patches or official mitigation guidance appear in the referenced advisories, which consist primarily of vulnerability database entries and exploit demonstrations.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-12948
Vulnerability details
A vulnerability was found in SourceCodester Music Gallery Site 1.0. It has been rated as critical. This issue affects some unknown processing of the file Users.php of the component POST Request Handler. The manipulation leads to improper access controls. The…
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attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-221633 was assigned to this vulnerability.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
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.
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.
Requiring prior authorization for each remote access type prevents improper access control over remote connections.
Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.