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

> Unauthenticated attackers can upload and execute malicious PHP scripts via the ELFinder component in Tiki Wiki, leading to remote code execution.

- **Severity:** Critical 9.3 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jul 2025
- **Updated:** 15 May 2026
- **Also known as:** GHSA-rjx6-82gp-m7gg

## What is CVE-2025-34111?

CVE-2025-34111 is a critical vulnerability in Tiki Tikiwiki Cms\/Groupware, published on 15 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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/.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-306 (Missing Authentication for Critical Functionality), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-34111?

It affects 1 product.


Products: Tiki Tikiwiki Cms\/Groupware.

## How do I fix CVE-2025-34111?

No fix has been published for CVE-2025-34111 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34111 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34111 exists.

Public exploit code:

- Tiki Wiki Unauthenticated File Upload Vulnerability (metasploit)

## Other vulnerabilities in Tiki Tikiwiki Cms\/Groupware

- [CVE-2008-3653](https://insights.sbomify.com/CVE-2008-3653/): Multiple unspecified vulnerabilities in TikiWiki CMS/Groupware before 2.0 have unknown impact and attack vectors. (critical 10.0)
- [CVE-2007-6529](https://insights.sbomify.com/CVE-2007-6529/): Other in n/a (critical 10.0)
- [CVE-2010-4239](https://insights.sbomify.com/CVE-2010-4239/): Path traversal in CMS Groupware (critical 9.8)
- [CVE-2012-0911](https://insights.sbomify.com/CVE-2012-0911/): Deserialization in n/a (critical 9.8)
- [CVE-2020-29254](https://insights.sbomify.com/CVE-2020-29254/): Cross-site request forgery in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34111 and fix it if it is affected.

What it is: CVE-2025-34111 is a critical vulnerability in Tiki Tikiwiki Cms\/Groupware, published on 15 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34111 exists.

Affected product: Tiki Tikiwiki Cms\/Groupware. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-34111/ (Markdown: https://insights.sbomify.com/CVE-2025-34111/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34111
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34111
- OSV: https://osv.dev/vulnerability/CVE-2025-34111

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34111/
Summaries are generated and may contain mistakes; the official description above is the record.