CVE-2025-34113

Summary

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 Software

Weaknesses

• CWE-306: CWE-306 Missing Authentication for Critical Function
• CWE-20: CWE-20 Improper Input Validation
• CWE-78: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

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

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