CVE-2026-129430
Received Received - Intake

Stored XSS in Axeloz Filesharing via Bundle Descriptions

Publication date: 2026-11-14

Last updated on: 2026-11-14

Assigner: VulnCheck

Description
Axeloz Filesharing before 2.14.3 contains a stored cross-site scripting vulnerability that allows authenticated users to inject script by storing raw HTML or javascript: Markdown links in bundle descriptions. Recipients viewing the public bundle preview page execute the script via Alpine x-html, letting attackers steal the owner_token from localStorage and issue owner-scoped requests against victim bundles.

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Meta Information

Published
2026-11-14
Last Modified
2026-11-14
Generated
2026-11-15
AI Q&A
2026-11-14
EPSS Evaluated
N/A
NVD
CVE-2026-129430
EUVD
EUVD-2026-125908

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
axeloz filesharing to 2.14.3 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a stored cross-site scripting (XSS) vulnerability in Axeloz Filesharing versions before 2.14.3. Authenticated users can inject raw HTML or JavaScript via Markdown links in bundle descriptions. When others view the public bundle preview page, the injected script executes through Alpine x-html, allowing attackers to steal the owner_token from localStorage and perform owner-scoped requests on victim bundles.

Detection Guidance

To detect this vulnerability, inspect markdown processing in bundle descriptions for raw HTML or javascript: links. Check if Str::markdown() is used without sanitization parameters like 'html_input' => 'strip' and 'allow_unsafe_links' => false. Review BundleResource.php for description_html field handling.

Impact Analysis

Attackers could steal your owner_token, allowing them to access and manipulate your file bundles without authorization. This could lead to unauthorized data exposure, deletion, or modification of your shared files and sensitive information.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection principles and HIPAA's security requirements for protected health information. Organizations may face compliance violations, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Upgrade to Axeloz Filesharing version 2.14.3 or later. Ensure markdown processing uses 'html_input' => 'strip' and 'allow_unsafe_links' => false in Str::markdown() calls. Review and sanitize all user-provided markdown in bundle descriptions before rendering.

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