Description
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.
Published: 2026-11-02
Score: 9.5 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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References
Link Providers
https://joomlaboat.com cve-icon cve-icon
History

Mon, 02 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 02 Nov 2026 19:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Joomla Extension - joomlaboat.com - Unauthenticated arbitrary file upload in Custom Tables < 3.7.8
Weaknesses CWE-434
References
Metrics cvssV4_0

{'score': 9.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Joomla

Published:

Updated: 2026-11-02T19:51:57.098Z

Reserved: 2026-10-05T16:15:38.885Z

Link: CVE-2026-105606

cve-icon Vulnrichment

Updated: 2026-11-02T19:34:56.774Z

cve-icon NVD

Status : Deferred

Published: 2026-11-02T19:17:50.330

Modified: 2026-11-02T20:17:27.253

Link: CVE-2026-105606

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-434

    Unrestricted Upload of File with Dangerous Type