CVE-2026-82236
Received Received - Intake

File Browser Unauthorized Access via Persistent Share Links

Publication date: 2026-08-28

Last updated on: 2026-08-28

Assigner: VulnCheck

Description
File Browser versions from 2.63.6 through 2.63.23 fail to clean up public share links when a privileged user deletes another user's shared file. Attackers can access the surviving share link to retrieve new unrelated content uploaded to the same path without authentication.

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Meta Information

Published
2026-08-28
Last Modified
2026-08-28
Generated
2026-09-18
AI Q&A
2026-08-28
EPSS Evaluated
2026-09-15
NVD
CVE-2026-82236
EUVD
EUVD-2026-67688

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
file_browser file_browser From 2.63.6 (inc) to 2.63.23 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-459 The product does not properly "clean up" and remove temporary or supporting resources after they have been used.

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Executive Summary

File Browser versions 2.63.6 through 2.63.23 have a flaw where public share links are not properly removed when a privileged user deletes another user's shared file. This allows attackers to access these lingering links and retrieve new content uploaded to the same path without needing authentication.

Detection Guidance

To detect this vulnerability, check for lingering public share links after file deletion. Review File Browser logs for share link creation and deletion events. Manually test by creating a share link, deleting the file as a privileged user, and verifying if the link still serves new content uploaded to the same path.

Impact Analysis

If you use File Browser in this version range, attackers could access sensitive data through old share links even after files are deleted. This could lead to unauthorized data exposure or leaks of new content uploaded to previously shared paths.

Compliance Impact

This vulnerability could violate data protection regulations like GDPR or HIPAA by allowing unauthorized access to sensitive data. It undermines proper data handling and access control requirements, potentially leading to compliance breaches and legal consequences.

Mitigation Strategies

Upgrade File Browser to a version later than 2.63.23 to fix the share link cleanup issue. Review and remove any lingering public share links for deleted files to prevent unauthorized access.

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