CVE-2023-53933

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-434

Affected software

No affected versions have been published.

Timeline

Published
Dec 17, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2023-53933: High severity, CVSS 8.8 | Vulnix