Is CVE-2023-0963 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2023-0963, but active exploitation has not been confirmed.

Can CVE-2023-0963 be exploited remotely?

Yes. CVE-2023-0963 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-0963?

CVE-2023-0963 has a CVSS score of 9.8 (CRITICAL).

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CRITICALPOC

CVE-2023-0963

CWE-284Published: February 22, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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 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.

NVD Source

Risk Analysis

Music Gallery Site 1.0 contains a critical access control vulnerability in the POST request handler of Users.php. This flaw is remotely exploitable and carries a high severity score due to the potential for unauthorized access and system manipulation.

A proof-of-concept exploit has been publicly disclosed for this vulnerability, though it is not in the CISA KEV catalog.

Recommended Action

Apply available security patches or updates provided by the vendor. Ensure the application is isolated from untrusted network access.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-0963 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

A proof-of-concept (PoC) exploit exists for CVE-2023-0963. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.