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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (45.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Leefish File Thingie — versions 2.5.7
- Leefish File Thingie — versions 2.5.7
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/51436 (Exploit, Third Party Advisory, exploit)
- github.com/leefish/filethingie (Product, product)
- www.vulncheck.com/advisories/file-thingie-authenticated-arbitrary-file-upload-r… (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.