# CVE-2025-34111

## Summary

- **CVE ID:** CVE-2025-34111
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (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)
- **CWE:** CWE-434, CWE-306, CWE-20
- **Published:** Jul 15, 2025
- **Last Modified:** May 15, 2026

## 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

- Tiki Software Community Association — Wiki CMS Groupware (*)
- Tiki Software Community Association — Wiki CMS Groupware (0)

## References

- [CNA](https://tiki.org/article434-Security-update-Tiki-15-2-Tiki-14-4-and-Tiki-12-9-released)
- [CNA](https://www.exploit-db.com/exploits/40091)
- [CNA](https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/tikiwiki_upload_exec.rb)
- [CNA](https://www.vulncheck.com/advisories/tiki-wiki-el-finder-unauthenticated-file-upload-rce)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 2.18%
- **EPSS Percentile:** 81.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._