Live › vulnerability › CVE-2026-105606
The Custom Tables extension for Joomla lets an anonymous visitor upload a file with an attacker-chosen extension to a publicly served temporary folder, and the response reveals where it was stored. An attacker can use this to host phishing or malware pages under the victim site's domain.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-02 19:24 UTC. All times on this page are UTC.
Joomla sites that run the Custom Tables extension below 3.7.8 and expose a public Custom Tables submission form are exposed. Sites without that extension or without a public submission form are not described by the sources as affected. Only the default static-serving behaviour is described; other configurations are unknown.
No product ranges from the sources yet.
3.7.8 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Joomla Extension - joomlaboat.com - Unauthenticated arbitrary file upload in Custom Tables < 3.7.8 - An unauthenticated attacker can upload a polyglot file with an attacker-controlled extension to the web-accessible tmp directory of any Joomla site that exposes a public Custom Tables submission form, and the stored path is disclosed in the response. By default the uploaded file is served as static content, so the primary impact is an unauthenticated arbitrary file write to a web-accessible directory, which allows hosting of attacker-controlled content (for example phishing or malware pages) under the victim's domain.
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