# CVE-2025-34113: Tiki Wiki CMS Authenticated Command Injection in Calendar Module

> Authenticated attackers can execute arbitrary PHP code via the viewmode parameter in the Calendar module, leading to remote code execution.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jul 2025
- **Updated:** 15 May 2026
- **Also known as:** GHSA-mpf8-7ggf-mqcv

## What is CVE-2025-34113?

CVE-2025-34113 is a high-severity command injection vulnerability in Tiki Software Community Association Wiki CMS Groupware, published on 15 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An authenticated command injection vulnerability exists in Tiki Wiki CMS versions ≤14.1, ≤12.4 LTS, ≤9.10 LTS, and ≤6.14 via the `viewmode` GET parameter in `tiki-calendar.php`. When the calendar module is enabled and an authenticated user has permission to access it, an attacker can inject and execute arbitrary PHP code. Successful exploitation leads to remote code execution in the context of the web server user.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-306 (Missing Authentication for Critical Functionality), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-34113?


## How do I fix CVE-2025-34113?

No fix has been published for CVE-2025-34113 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34113 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34113 exists.

Public exploit code:

- Tiki-Wiki CMS Calendar Command Execution (metasploit)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34113 and fix it if it is affected.

What it is: CVE-2025-34113 is a high-severity command injection vulnerability in Tiki Software Community Association Wiki CMS Groupware, published on 15 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34113 exists.

Affected product: Tiki Software Community Association Wiki 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-2025-34113/ (Markdown: https://insights.sbomify.com/CVE-2025-34113/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34113
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34113
- OSV: https://osv.dev/vulnerability/CVE-2025-34113

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34113/
Summaries are generated and may contain mistakes; the official description above is the record.