Vulnerability record · CVE-2023-53942 · published 18 December 2025

CVE-2023-53942: Leefish file thingie unrestricted file upload vulnerability

Leefish · File Thingie

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.

9.4 CVSS 4.0 Critical EPSS 0.58% · top 54.6% CWE-434 · Unrestricted file upload

9.4CVSS 4.0 base score

0.58%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

File Thingie Leefish

References

Link	Tags
https://github.com/leefish/filethingie	Product
https://www.exploit-db.com/exploits/51436	ExploitThird Party Advisory
https://www.vulncheck.com/advisories/file-thingie-authenticated-arbitrary-file-upload-remote-code-execution	Third Party Advisory
https://www.exploit-db.com/exploits/51436	ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2019-25471Leefish file thingie path traversal vulnerabilityFileThingie 2.5.7 contains an arbitrary file upload vulnerability that allows attackers to upload malicious files by sending ZIP archives through the…EPSS 0.90%11 Mar 2026 6.5CVE-2026-30578Leefish file thingie cross-site scripting vulnerabilityFile Thinghie 2.5.7 is vulnerable to Cross Site Scripting (XSS). A malicious user can leverage the "dir" parameter of the GET request to invoke arbit…EPSS 0.24%20 Mar 2026 6.5CVE-2026-30579Leefish file thingie cross-site scripting vulnerabilityFile Thingie 2.5.7 is vulnerable to Cross Site Scripting (XSS). A malicious user can leverage the "upload file" functionality to upload a file with a…EPSS 0.24%20 Mar 2026 4.3CVE-2026-30580Leefish file thingie path traversal vulnerabilityFile Thingie 2.5.7 is vulnerable to Directory Traversal. A malicious user can leverage the "create folder from url" functionality of the application …EPSS 0.64%20 Mar 2026 10.0CVE-2026-56291Balbooa Forms Joomla extension unauthenticated arbitrary file upload RCEThe Balbooa Forms extension for Joomla before version 2.4.1 accepts file uploads without authentication and does not restrict file type, allowing exe…KEVEPSS 15%analysed9 Jul 2026 10.0CVE-2026-48939iCagenda Joomla extension unrestricted file upload leads to PHP RCEThe iCagenda extension for Joomla fails to restrict file types in its file attachment feature, allowing arbitrary file uploads that result in PHP cod…KEVEPSS 20%analysed20 Jun 2026 10.0CVE-2026-56290Joomla Page Builder CK unauthenticated file upload leads to RCEThe Joomla Page Builder CK extension before 3.6.0 allows unauthenticated arbitrary file uploads, letting an attacker place executable files on the se…KEVEPSS 31%analysed29 Jun 2026 10.0CVE-2026-48908SP Page Builder for Joomla unauthenticated arbitrary file upload RCESP Page Builder for Joomla permits unauthenticated users to upload arbitrary files, which can lead to upload and execution of PHP code. The flaw is a…KEVEPSS 89%analysed20 Jun 2026

Source: NIST National Vulnerability Database (record CVE-2023-53942), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.