CVE-2023-53942

Name: CVE-2023-53942
Creator: NVD / NIST
Published: 2025-12-18T20:15:52.783+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.4/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2023-53942 is a critical-severity vulnerability rated 9.4/10 on the CVSS scale. 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.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

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

CVSS 4.0

9.4/10

CVSS: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

EPSS Probability

0.50%

38.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Leefish	File Thingie	2.5.7

References

https://github.com/leefish/filethingieProduct
https://www.exploit-db.com/exploits/51436Exploit, Third Party Advisory
https://www.vulncheck.com/advisories/file-thingie-authenticated-arbitrary-file-upload-remote-code-executionThird Party Advisory
https://www.exploit-db.com/exploits/51436Exploit, Third Party Advisory

Timeline

Published: Dec 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-53942?

How severe is CVE-2023-53942?

CVE-2023-53942 has a CVSS score of 9.4/10 (CRITICAL severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2023-53942?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-53942?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST