CVE-2025-34113
CVE-2025-34113 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: High (CVSS 4.0 base score 8.7)
- EPSS exploit prediction: 2% (79th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-21426
- Weakness: CWE-20
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-34113?
- 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.
- How severe is CVE-2025-34113?
- CVE-2025-34113 has a CVSS 4.0 base score of 8.7, rated high severity.
- Is CVE-2025-34113 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-34113?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-34113 have an EU (EUVD) identifier?
- Yes. CVE-2025-34113 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21426.
- When was CVE-2025-34113 published?
- CVE-2025-34113 was published on 2025-07-15 and last updated on 2026-06-17.
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/tiki_calendar_exec.rb
- https://tiki.org/article414-Important-Security-Fix-for-all-versions-of-Tiki
- https://www.acunetix.com/vulnerabilities/web/tiki-wiki-cms-remote-code-execution-via-calendar-module/
- https://www.exploit-db.com/exploits/39965
- https://www.vulncheck.com/advisories/tiki-wiki-cms-authenticated-command-injection-in-calendar-module
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