Vulnerability · Published Jul 15, 2025 · Assigned by VulnCheck
CVE-2025-34111Tiki Wiki <= 15.1 ELFinder Unauthenticated File Upload RCE
Critical 9.3
In plain English
A critical-severity unrestricted file upload in Wiki CMS Groupware from Tiki Software Community Association. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 85% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit.
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Tiki Software Community Association | Wiki CMS Groupware | 0 – through 15.1 |
Weakness: CWE-434, CWE-306, CWE-20 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://tiki.org/article434-Security-update-Tiki-15-2-Tiki-14-4-and-Tiki-12-9-released vendor-advisory, patch
- https://www.exploit-db.com/exploits/40091 exploit
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/tikiwiki_upload_exec.rb exploit
- https://www.vulncheck.com/advisories/tiki-wiki-el-finder-unauthenticated-file-upload-rce third-party-advisory