CVE-2023-53942

File Thingie 2.5.7 Authenticated Arbitrary File Upload Remote Code Execution

File Thingie 2.5.7 contains an authenticated file upload vulnerability that allows remote attackers to upload malicious PHP zip archives to the web server. Attackers can create a custom PHP payload, upload and unzip it, and then execute arbitrary system commands through a crafted PHP script with a command parameter.

Affected

leefish · File Thingie

CVSS v4.0 VULNCHECK

9.4 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULNCHECK

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

EPSS

0.58% chance of exploitation in the next 30 days, 47th percentile

Published

2025-12-18

Updated

2026-04-07

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51436

Security advisories

• https://www.vulncheck.com/advisories/file-thingie-authenticated-arbitrary-file-upload-rem…
• leefish/filethingie

References

• CVE Record
• NVD entry