What’s Vulnerable › Vulnerabilities

CVE-2026-33070: FileRise has Unauthenticated Share Link Deletion

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-20 · updated 2026-06-17
• Weakness: CWE-306

Description

FileRise is a self-hosted web file manager / WebDAV server. In versions prior to 3.8.0, a missing-authentication vulnerability in the deleteShareLink endpoint allows any unauthenticated user to delete arbitrary file share links by providing only the share token, causing denial of service to shared file access. The POST /api/file/deleteShareLink.php endpoint calls FileController::deleteShareLink() which performs no authentication, authorization, or CSRF validation before deleting a share link. Any anonymous HTTP client can destroy share links. This issue is fixed in version 3.8.0.

Affected products

• error311 FileRise: before 3.8.0 — fixed in 3.8.0

How to fix

Upgrade to a fixed version: error311 FileRise 3.8.0. Check the vendor advisory for mitigations.

References

• https://github.com/error311/FileRise/releases/tag/v3.8.0
• https://github.com/error311/FileRise/security/advisories/GHSA-vh5m-w36c-99xv

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