How severe is CVE-2025-34111?

CVE-2025-34111 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-34111 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-34111?

CVE-2025-34111 affects Tiki Tikiwiki Cms/groupware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-34111?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-34111 have an EU (EUVD) identifier?

Yes. CVE-2025-34111 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21425.

When was CVE-2025-34111 published?

CVE-2025-34111 was published on 2025-07-15 and last updated on 2026-06-17.

CVE-2025-34111

CVE-2025-34111 is a critical-severity vulnerability in Tiki Tikiwiki Cms/groupware with a CVSS 3.x base score of 9.8. 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21425
Weakness: CWE-434
Affected product: Tiki Tikiwiki Cms/groupware
Published: 2025-07-15
Last modified: 2026-06-17

Description

An unauthenticated arbitrary file upload vulnerability exists in Tiki Wiki CMS Groupware version 15.1 and earlier via the ELFinder component's default connector (connector.minimal.php), which allows remote attackers to upload and execute malicious PHP scripts in the context of the web server. The vulnerable component does not enforce file type validation, allowing attackers to craft a POST request to upload executable PHP payloads through the ELFinder interface exposed at /vendor_extra/elfinder/.

Frequently asked questions

What is CVE-2025-34111?: An unauthenticated arbitrary file upload vulnerability exists in Tiki Wiki CMS Groupware version 15.1 and earlier via the ELFinder component's default connector (connector.minimal.php), which allows remote attackers to upload and execute malicious PHP scripts in the context of the web server. The vulnerable component does not enforce file type validation, allowing attackers to craft a POST request to upload executable PHP payloads through the ELFinder interface exposed at /vendor_extra/elfinder/.
How severe is CVE-2025-34111?: CVE-2025-34111 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-34111 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-34111?: CVE-2025-34111 affects Tiki Tikiwiki Cms/groupware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-34111?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-34111 have an EU (EUVD) identifier?: Yes. CVE-2025-34111 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21425.
When was CVE-2025-34111 published?: CVE-2025-34111 was published on 2025-07-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tiki:tikiwiki_cms\/groupware:*:*:*:*:*:*:*:*

More vulnerabilities in Tiki Tikiwiki Cms/groupware

CVE-2008-3653 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in TikiWiki CMS/Groupware before 2.0 have unknown impact and attack vectors.
CVE-2007-6529 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in TikiWiki before 1.9.9 have unknown impact and attack vectors involving (1)…
CVE-2010-4239 — Critical (CVSS 9.8): Tiki Wiki CMS Groupware 5.2 has Local File Inclusion
CVE-2012-0911 — Critical (CVSS 9.8): TikiWiki CMS/Groupware before 6.7 LTS and before 8.4 allows remote attackers to execute arbitrary PHP code via a…
CVE-2020-29254 — High (CVSS 8.8): TikiWiki 21.2 allows templates to be edited without CSRF protection. This could allow an unauthenticated, remote…
CVE-2010-4241 — High (CVSS 8.8): Tiki Wiki CMS Groupware 5.2 has CSRF

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