CVE-2025-34111

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 v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-20 Improper Input Validation

CWE-306 Missing Authentication

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
tiki	tikiwiki_cms\/groupware	< 15.1

References

Exploits

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/tikiwiki_upload_exec.rb https://www.exploit-db.com/exploits/40091

Other References

https://tiki.org/article434-Security-update-Tiki-15-2-Tiki-14-4-and-Tiki-12-9-released https://www.vulncheck.com/advisories/tiki-wiki-el-finder-unauthenticated-file-upload-rce

Frequently Asked Questions

What is 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/. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-34111? +

CVE-2025-34111 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-34111? +

CVE-2025-34111 affects products from tiki, specifically: tikiwiki_cms\/groupware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-34111? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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