Vulnerability · Published Jul 15, 2025 · Assigned by VulnCheck
CVE-2025-34113Tiki Wiki CMS Authenticated Command Injection in Calendar Module
High 8.7
In plain English
A high-severity missing authentication in Wiki CMS Groupware from Tiki Software Community Association. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.0% (higher than 87% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit.
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Tiki Software Community Association | Wiki CMS Groupware | 0 – through 14.10 – through 12.4 LTS0 – through 9.10 LTS0 – through 6.14 |
Weakness: CWE-306, CWE-20, CWE-78 · 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
References
- https://tiki.org/article414-Important-Security-Fix-for-all-versions-of-Tiki vendor-advisory, patch
- https://www.exploit-db.com/exploits/39965 exploit
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/tiki_calendar_exec.rb exploit
- https://www.acunetix.com/vulnerabilities/web/tiki-wiki-cms-remote-code-execution-via-calendar-module/ third-party-advisory
- https://www.vulncheck.com/advisories/tiki-wiki-cms-authenticated-command-injection-in-calendar-module third-party-advisory