CVE-2025-34111

critical

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/.

References

https://tiki.org/article434-Security-update-Tiki-15-2-Tiki-14-4-and-Tiki-12-9-released

https://www.exploit-db.com/exploits/40091

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/tikiwiki_upload_exec.rb

https://www.vulncheck.com/advisories/tiki-wiki-el-finder-unauthenticated-file-upload-rce

Details

Source: Mitre, NVD

Published: 2025-07-15

Updated: 2025-07-15

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

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

Severity: Critical

EPSS

EPSS: 0.00176