CVE-2025-34111

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/.

• CWE-20
• CWE-306
• CWE-434
• CWE-434

• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/tikiwiki_upload_exec.rbExploit, Third Party Advisory
• https://tiki.org/article434-Security-update-Tiki-15-2-Tiki-14-4-and-Tiki-12-9-releasedRelease Notes
• https://www.exploit-db.com/exploits/40091Exploit, Third Party Advisory, VDB Entry
• https://www.vulncheck.com/advisories/tiki-wiki-el-finder-unauthenticated-file-upload-rceThird Party Advisory

Published

Jul 15, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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