---
id: "CVE-2026-105603"
kind: "vulnerability"
aliases: ["CVE-2026-105603"]
title: "DJ-Classifieds Joomla extension: authenticated file upload leads to code execution"
severity: "critical"
cvss: 9.4
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["dj-classifieds", "joomla", "package", "php", "self-hosted"]
not_affected_if: ["extension-not-installed", "no-user-registration", "version-3.11.3-or-later"]
published_at: "2026-11-02T19:17:49+00:00"
first_seen_at: "2026-11-02T19:24:38+00:00"
updated_at: "2026-11-02T19:26:32+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105603", "first_seen_at": "2026-11-02T19:24:38+00:00"}]
---

# DJ-Classifieds Joomla extension: authenticated file upload leads to code execution

The DJ-Classifieds extension for Joomla lets a logged-in user upload arbitrary files. The sources say this leads to full remote code execution on the site.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed DJ-Classifieds version in the Joomla extensions manager, or in the component manifest file.
- Confirm whether the site has user accounts that can upload files through the classifieds component.

## Fix

- DJ-Classifieds: upgrade to `3.11.3` or later (per the affected range '< 3.11.3').

## Timeline

- 2026-11-02T19:24:38+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-105603

## From the sources

Joomla Extension - dj-extensions.com - Authenticated arbitrary file upload in DJ-Classifieds < 3.11.3 - The Joomla extension DJ-Classifieds is vulnerable to an unprivileged file upload, leading to full RCE.

---

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