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Critical · 9.3 Public exploit CVE-2025-34111 EUVD-2025-21425GHSA-rjx6-82gp-m7gg

Tiki Wiki <= 15.1 ELFinder Unauthenticated File Upload RCE

Published Jul 15, 2025 · Updated May 15, 2026 · Assigned by VulnCheck

Description

An unauthenticated arbitrary file upload vulnerability exists in Tiki Wiki CMS Groupware version 15.1 and earlier via the ELFinder component's default connector (connector.minimal.php), which allows remote attackers to upload and execute malicious PHP scripts in the context of the web server. The vulnerable component does not enforce file type validation, allowing attackers to craft a POST request to upload executable PHP payloads through the ELFinder interface exposed at /vendor_extra/elfinder/.

Affected products

VendorProductAffectedFixed
Tiki Software Community Association Wiki CMS Groupware ≤ 15.1 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References