CVE-2025-34111: An unauthenticated arbitrary file upload vulnerability exists in Tiki Wiki CMS Groupware version 15.1 and earl

Q: How do I fix CVE-2025-34111?

tikiwiki cms\/groupware: upgrade to newer than 15.1. Exact commands for each OS are on this page.

Q: Is CVE-2025-34111 being exploited?

CVE-2025-34111 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-34111 affect?

CVE-2025-34111 affects tikiwiki cms\/groupware. Severity is critical (CVSS 9.8). 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 ma

Q: How urgent is CVE-2025-34111?

Priority 69/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-34111 is a critical-severity flaw (CVSS 9.8) affecting tikiwiki cms\/groupware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 ELF

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-20, CWE-306, CWE-434
Published	2025-07-15
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: tiki

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-15 13:15 UTCPublished CVE record published
2026-06-17 09:13 UTCUpdated Record last modified

tiki tikiwiki cms\/groupware UPGRADE

Affected: <= 15.1

Fixed in: newer than 15.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy tikiwiki-cmsgroupware || rpm -q tikiwiki-cmsgroupware || tikiwiki-cmsgroupware --version

2. UPGRADE to newer than 15.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade tikiwiki-cmsgroupware

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade tikiwiki-cmsgroupware

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · R · FIXED · 4.6.2-1.fc46 · FEDORA-2026-1dd919a262 · source

sudo dnf upgrade --advisory=FEDORA-2026-1dd919a262

Fedora ELN · perl-Mail-AuthenticationResults · FIXED · 2.20261029-1.eln159 · FEDORA-2026-a2c11d7da6 · source

sudo dnf upgrade --advisory=FEDORA-2026-a2c11d7da6

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: www.exploit-db.com/exploits/40091
Write-up: www.vulncheck.com/advisories/tiki-wiki-el-finder-unauthenticated-file-upload-rce
Metasploit: Tiki Wiki Unauthenticated File Upload Vulnerability

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-34111?

tikiwiki cms\/groupware: upgrade to newer than 15.1. Exact commands for each OS are on this page.

Is CVE-2025-34111 being exploited?

CVE-2025-34111 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-34111 affect?

CVE-2025-34111 affects tikiwiki cms\/groupware. Severity is critical (CVSS 9.8). 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 ma

How urgent is CVE-2025-34111?

Priority 69/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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