Which versions of Joomla are affected by CVE-2025-54473?

CVE-2025-54473 presents critical security risk, a unrestricted file upload vulnerability rated CVSS 9.2.

How to fix or mitigate CVE-2025-54473?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Review file handling controls and restrict upload directories.

Joomla CVE-2025-54473

Q: What is the CVSS score of CVE-2025-54473?

CVE-2025-54473 has a CVSS 4.0 base score of 9.2 (Critical). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:X/V:X/RE:L/U:Clear. EPSS exploitation probability: 0.1%.

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2025-08-15 security@joomla.org

RCE File Upload Joomla

9.2

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

9.2 CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:X/V:X/RE:L/U:Clear

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:X/V:X/RE:L/U:Clear

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:07 vuln.today

CVE Published

Aug 15, 2025 - 12:15 nvd

CRITICAL 9.2

DescriptionCVE.org

An authenticated RCE vulnerability in Phoca Commander component 1.0.0-4.0.0 and 5.0.0-5.0.1 for Joomla was discovered. The issue allows code execution via the unzip feature.

AnalysisAI

An authenticated RCE vulnerability in Phoca Commander component 1.0.0-4.0.0 and 5.0.0-5.0.1 for Joomla was discovered. Rated critical severity (CVSS 9.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. An authenticated RCE vulnerability in Phoca Commander component 1.0.0-4.0.0 and 5.0.0-5.0.1 for Joomla was discovered. The issue allows code execution via the unzip feature.

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.

CVE-2025-54473 vulnerability details – vuln.today

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