CVE-2025-34113

Tiki Wiki CMS Authenticated Command Injection in Calendar Module

Published Jul 15, 2025 CVSS 4.0 · 8.7 High EPSS 3.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-21426 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.
History
Type Values Removed Values Added
First Time appeared Tiki
Tiki tikiwiki Cms\/groupware
CPEs cpe:2.3:a:tiki:tikiwiki_cms\/groupware:*:*:*:*:*:*:*:*
Vendors & Products Tiki
Tiki tikiwiki Cms\/groupware
Type Values Removed Values Added
Metrics epss

{'score': 0.00583}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Tiki Wiki CMS Authenticated Command Injection in Calendar Module
Weaknesses CWE-20
CWE-306
CWE-78
References
Metrics cvssV4_0

{'score': 8.7, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
May 15, 2026, 11:14 AM
Reserved
Apr 15, 2025, 7:15 PM
Status
Deferred
Published
Jul 15, 2025, 1:15 PM
Modified
Jun 17, 2026, 9:13 AM