CVE-2023-53933
Serendipity 2.4.0 Authenticated Remote Code Execution via File Upload
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.7EPSS 0.9%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
17 Dec 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
s9y · SerendipityWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →