9.0
CRITICAL CVSS 4.0
CVE-2026-57828
Joomla Extension - phoca.cz - Authenticated file upload in RSFiles component < 6.1.3
Description

The Joomla extension Phoca Downloads is vulnerable to an authenticated arbitrary file upload that allows registered users uploading executable files and leads to full RCE.

INFO

Published Date :

July 11, 2026, 10:16 a.m.

Last Modified :

July 11, 2026, 10:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-57828 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 CRITICAL 6ff30186-7fb7-4ad9-be33-533e7b05e586
CVSS 4.0 CRITICAL [email protected]
Solution
Update the Joomla extension Phoca Downloads to the latest version to prevent arbitrary file uploads and RCE.
  • Update the Phoca Downloads extension.
  • Restrict upload permissions for registered users.
  • Review uploaded files for malicious content.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-57828.

URL Resource
https://mysites.guru/blog/phoca-download-authenticated-file-upload-rce/
https://www.phoca.cz/phocadownload
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-57828 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-57828 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-57828 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-57828 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jul. 11, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'phoca.cz', 'product': 'phoca.cz Phoca Download extension for Joomla', 'versions': [{'status': 'affected', 'version': '1.0-6.1.2'}], 'defaultStatus': 'unaffected'}]
    Added Description The Joomla extension Phoca Downloads is vulnerable to an authenticated arbitrary file upload that allows registered users uploading executable files and leads to full RCE.
    Added CVSS V4.0 AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-434
    Added Reference https://mysites.guru/blog/phoca-download-authenticated-file-upload-rce/
    Added Reference https://www.phoca.cz/phocadownload
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.