CVE-2023-53933 - CVE House
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Status published High CVE-2023-53933

Serendipity 2.4.0 Authenticated Remote Code Execution via File Upload

Vulnerability Description

Serendipity 2.4.0 contains a remote code execution vulnerability that allows authenticated attackers to upload malicious PHP files with .phar extension. Attackers can upload files with system command payloads to the media upload endpoint and execute arbitrary commands on the server.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Mirabbas Ağalarov

Affected Vendor

Affected Software

Serendipity
Vulnerable Versions:
2.4.0

Timeline

Official Publish: December 17th, 2025
Last Modified: April 7th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)