CVE-2025-34111
CRITICAL EPSS 71.4%
Published Jul 15, 202511mo ago · Modified Jun 17, 20261w ago
9.3 CVSS 4.0
Published Jul 15, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago
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/.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
71.4% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 3
CWE-20 Improper Input Validation Validation
CWE-306 Missing Authentication for Critical Function Authentication
CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| tiki | tikiwiki_cms\/groupware | * | ≤15.1 |
References 4
- raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/tikiwiki_upload_exec.rb
- tiki.org https://tiki.org/article434-Security-update-Tiki-15-2-Tiki-14-4-and-Tiki-12-9-released
- exploit-db.com https://www.exploit-db.com/exploits/40091
- vulncheck.com https://www.vulncheck.com/advisories/tiki-wiki-el-finder-unauthenticated-file-upload-rce
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.