Arbitrary file upload in Leefish File Thingie
CVE-2023-53942
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.
Vulnerability class: Unrestricted File Upload
EPSS: 0.005 (40.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Leefish File Thingie — versions 2.5.7
- Leefish File_thingie — versions 2.5.7
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, Third Party Advisory, exploit)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2023-53942?
- CVE-2023-53942 is a high-severity vulnerability in Leefish File Thingie, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2025-12-18.
- How severe is CVE-2023-53942?
- High severity. CVSS v3 base score is 8.8 out of 10.