CVE-2025-34111 CRITICAL

CVE-2025-34111: Tiki Wiki <= 15.1 ELFinder Unauthenticated File Upload RCE

Vendor Tiki Software Community Association
Product Wiki CMS Groupware
Weakness CWE-434 · Unrestricted file upload
Published July 15, 2025
Last update May 15, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS 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

What the vulnerability does

01Description

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/.

Key dates

02Disclosure timeline

July 15, 2025 CVE published
May 15, 2026 Record updated