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

Quick assessment

Affected
error311 FileRise
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FileRise是Ryan个人开发者的一个轻量级、自托管的基于web的文件管理器。 FileRise 3.8.0之前版本存在访问控制错误漏洞，该漏洞源于deleteShareLink端点缺少身份验证，可能导致任意共享链接删除和拒绝服务。

CVSS 3.7 · Low EPSS 0.33% · P24
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I. Basic Information for CVE-2026-33070

Vulnerability Information
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Vulnerability Title
FileRise has Unauthenticated Share Link Deletion
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
FileRise 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FileRise是Ryan个人开发者的一个轻量级、自托管的基于web的文件管理器。 FileRise 3.8.0之前版本存在访问控制错误漏洞，该漏洞源于deleteShareLink端点缺少身份验证，可能导致任意共享链接删除和拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
error311 FileRise < 3.8.0 -

II. Public POCs for CVE-2026-33070

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III. Intelligence Information for CVE-2026-33070

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Vendor Advisories for CVE-2026-33070 (1)

Proof of Concept for CVE-2026-33070 (1)

Same Patch Batch · error311 · 2026-03-20 · 3 CVEs total

CVE-2026-33072 8.2 HIGH FileRise: Default Encryption Key Enables Token Forgery and Config Decryption
CVE-2026-33071 4.3 MEDIUM FileRise: WebDAV upload path bypasses filename validation enforced by regular uploads

IV. Related Vulnerabilities

Same product: FileRise
Same vendor: error311
Same weakness: CWE-306

V. Comments for CVE-2026-33070

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