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CVE-2025-34113

Tiki Wiki CMS Authenticated Command Injection in Calendar Module

HIGH
8.7
CVSS Score
Published: July 15, 2025 at 01:09 PM UTC
Updated: June 17, 2026 at 09:13 AM UTC
2 products affected across 2 vendorsTikiwiki CMS /groupwareTiki Wiki CMS Groupware

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Severity
HIGH8.7
Exploit prediction
EPSS 3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Tikiwiki CMS /groupware· Tikidrupal
95%
v ≤ 12.4_ltsv ≤ 14.1v ≤ 6.14v ≤ 9.10_lts
Tiki Wiki CMS Groupware· Tiki Community Association
60%
v ≤ 12.4 LTSv ≤ 14.1v ≤ 6.14v ≤ 9.10 LTS

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Exploit
Source: [email protected]
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/tiki_calendar_exec.rb
Vendor AdvisoryPatch
Source: [email protected]
https://tiki.org/article414-Important-Security-Fix-for-all-versions-of-Tiki
Third Party Advisory
Source: [email protected]
https://www.acunetix.com/vulnerabilities/web/tiki-wiki-cms-remote-code-execution-via-calendar-module/
Exploit
Source: [email protected]
https://www.exploit-db.com/exploits/39965
Third Party Advisory
Source: [email protected]
https://www.vulncheck.com/advisories/tiki-wiki-cms-authenticated-command-injection-in-calendar-module

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-20CWE-78CWE-306

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