CVE-2021-43421

CRITICAL NUCLEI

Studio-42 elFinder 2.0.4-2.1.59 - Unauthenticated Arbitrary File Upload via connector.minimal.php

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-43421 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

Description

A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.

Nuclei Templates (1)

Studio-42 elFinder <2.1.60 - Arbitrary File Upload
CRITICALVERIFIEDby akincibor

References (2)

Core 2
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/Studio-42/elFinder/issues/3429
Third Party Advisory x_refsource_misc
https://twitter.com/infosec_90/status/1455180286354919425

Scores

CVSS v3 9.8
EPSS 0.4229
EPSS Percentile 98.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-434
Status published
Products (2)
std42/elfinder 2.0.4 - 2.1.59
studio-42/elfinder 2.0.4 - 2.1.60Packagist
Published Apr 07, 2022
Tracked Since Feb 18, 2026