Tiki Wiki CMS Authenticated Command Injection in Calendar Module
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass, Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306 and CWE-78.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tiki Software Community Association | Wiki CMS Groupware | up to 14.1; up to 12.4 LTS; up to 9.10 LTS; up to 6.14 | — | No fix listed | CNA |
- Wiki CMS Groupware VendorTiki Software Community Association Affected up to 14.1; up to 12.4 LTS; up to 9.10 LTS; up to 6.14 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-34113
- 2026-10-03 Alias added: GHSA-mpf8-7ggf-mqcv
References
Exploit 2
Sources
- CVE-2025-34113 · CVE Program
- CVE-2025-34113 · NVD
- FIRST EPSS
- GHSA-mpf8-7ggf-mqcv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences