CVE-2026-34415

CRITICAL

Xerte Online Toolkits File Upload RCE via elfinder Connector

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-34415. Includes Metasploit module exploits/multi/http/xerte_unauthenticated_mediaupload.

AI-analyzed exploit summary This Metasploit module exploits an unauthenticated arbitrary file upload vulnerability in Xerte Online Toolkits by bypassing authentication, extension blacklists, and path traversal restrictions to upload and execute a PHP shell.

Description

Xerte Online Toolkits versions 3.15 and earlier contain an incomplete input validation vulnerability in the elFinder connector endpoint that fails to block PHP-executable extensions .php4 due to an incorrect regex pattern. Unauthenticated attackers can exploit this flaw combined with authentication bypass and path traversal vulnerabilities to upload malicious PHP code, rename it with a .php4 extension, and execute arbitrary operating system commands on the server.

Exploits (1)

metasploit WORKING POC EXCELLENT
rubypoclinux
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/xerte_unauthenticated_mediaupload.rb

This Metasploit module exploits an unauthenticated arbitrary file upload vulnerability in Xerte Online Toolkits by bypassing authentication, extension blacklists, and path traversal restrictions to upload and execute a PHP shell.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Xerte Online Toolkits versions 3.15 (commit 4e40f8030a2e3267267db7ce03e0ff57270be6f5) and earlier
No auth needed
Prerequisites: Access to the target's /editor/elfinder/php/connector.php endpoint · Default or known project structure
mistral-large-3 · analyzed Jun 16, 2026 Full analysis →

Scores

CVSS v3 9.8
EPSS 0.0357
EPSS Percentile 88.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-184
Status published
Products (7)
thexerteproject/xerteonlinetoolkits < 02661be88cc369325ea01b508086bde7fbfec805
thexerteproject/xerteonlinetoolkits < 17e4f945fe6a3400fa88c01eda18c1075ee4a212
thexerteproject/xerteonlinetoolkits < 3.15.0
thexerteproject/xerteonlinetoolkits < 507d55c5e91bf9310b5b1c7fad8aebfef902ad23
thexerteproject/xerteonlinetoolkits 3.13.0
thexerteproject/xerteonlinetoolkits 3.14.0
thexerteproject/xerteonlinetoolkits 3.15.0
Published Apr 22, 2026
Tracked Since Apr 23, 2026