joomlaboat Custom Tables Extension up to 3.7.7 unrestricted upload

Summaryinfo

A vulnerability was found in joomlaboat Custom Tables Extension up to 3.7.7 and classified as critical. Affected by this issue is some unknown functionality. Executing a manipulation can lead to unrestricted upload. This vulnerability appears as CVE-2026-105606. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in joomlaboat Custom Tables Extension up to 3.7.7. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

This vulnerability was named CVE-2026-105606 since 10/05/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/02/2026). This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Content Management System

Vendor

• joomlaboat

Name

• Custom Tables Extension

Version

• 3.7.0
• 3.7.1
• 3.7.2
• 3.7.3
• 3.7.4
• 3.7.5
• 3.7.6
• 3.7.7

CPE 2.3info

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CPE 2.2info

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