Critical severity · published Jul 15, 2025
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…
9.8
CVSS
2.6%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TC
Tikiwiki Cms/groupware · Tiki
through 15.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-34111
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-34111
Exploit
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/tikiwiki_upload_exec.rb
Release Notes
https://tiki.org/article434-Security-update-Tiki-15-2-Tiki-14-4-and-Tiki-12-9-released
Exploit
https://www.exploit-db.com/exploits/40091
Third Party Advisory
https://www.vulncheck.com/advisories/tiki-wiki-el-finder-unauthenticated-file-upload-rce
More from Tikiwiki Cms/groupware
9.8
CVE-2010-4239
Tiki Wiki CMS Groupware 5.2 has Local File Inclusion
9.8
CVE-2012-0911
TikiWiki CMS/Groupware before 6.7 LTS and before 8.4 allows remote attackers to execute arbitrary PHP code via a crafted serialized object in the (1) cookieName to…
8.8
CVE-2020-29254
TikiWiki 21.2 allows templates to be edited without CSRF protection
8.8
CVE-2010-4241
Tiki Wiki CMS Groupware 5.2 has CSRF
8.8
CVE-2018-20719
In Tiki before 17.2, the user task component is vulnerable to a SQL Injection via the tiki-user_tasks.php show_history parameter