CVE-2026-33070 | error311 FileRise up to 3.7.x deleteShareLink Endpoint missing authentication

VDB-352039 · CVE-2026-33070 · GCVE-0-2026-33070 ERROR311 FILERISE UP TO 3.7.X DELETESHARELINK ENDPOINT MISSING AUTHENTICATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.6 $0-$5k 1.85+ Summaryinfo A vulnerability identified as critical has been detected in error311 FileRise up to 3.7.x. The affected element is the function FileController::deleteShareLink of the component deleteShareLink Endpoint. This manipulation causes missing authentication. The identification of this vulnerability is CVE-2026-33070. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component. Detailsinfo A vulnerability has been found in error311 FileRise up to 3.7.x and classified as critical. Affected by this vulnerability is the function FileController::deleteShareLink of the component deleteShareLink Endpoint. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: 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. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-33070 since 03/17/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. Upgrading to version 3.8.0 eliminates this vulnerability. Productinfo Vendor error311 Name FileRise Version 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Website Product: https://github.com/error311/FileRise/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.7 VulDB Meta Temp Score: 4.6 VulDB Base Score: 5.6 VulDB Temp Score: 5.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 3.7 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Missing authentication CWE: CWE-306 / CWE-287 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: FileRise 3.8.0 Timelineinfo 03/17/2026 CVE reserved 03/20/2026 +3 days Advisory disclosed 03/20/2026 +0 days VulDB entry created 03/20/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-33070 (🔒) GCVE (CVE): GCVE-0-2026-33070 GCVE (VulDB): GCVE-100-352039 Entryinfo Created: 03/20/2026 10:11 Changes: 03/20/2026 10:11 (65) Complete: 🔍 Cache ID: 99:5A6:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸