What is CVE-2025-34111?

CVE-2025-34111 is a critical-severity vulnerability in Tiki Tikiwiki Cms\/groupware, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2025-07-15.

How severe is CVE-2025-34111?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-34111 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Tiki Tikiwiki Cms\/groupware

CVE-2025-34111

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/.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2025-07-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (81.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.022 · change: +0.007

Affected products

Tiki Tikiwiki Cms\/groupware
Tiki Software Community Association Wiki Cms Groupware — versions 0

Weakness classification (CWE)

Public proof-of-concept exploits

rapid7/metasploit-framework

References

tiki.org/article434-Security-update-Tiki-15-2-Tiki-14-4-and-Tiki-12-9-released (vendor-advisory, Release Notes, patch)
www.exploit-db.com/exploits/40091 (Exploit, VDB Entry, Third Party Advisory, exploit)
raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/u… (Exploit, Third Party Advisory, exploit)
www.vulncheck.com/advisories/tiki-wiki-el-finder-unauthenticated-file-upload-rce (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2025-34111?: CVE-2025-34111 is a critical-severity vulnerability in Tiki Tikiwiki Cms\/groupware, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2025-07-15.
How severe is CVE-2025-34111?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-34111 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.