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TI-2026-25740 Aliases CVE-2026-33330

FileRise ONLYOFFICE integration allows read-only users to overwrite files via forged save callback

Priority MEDIUM 64CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

FileRise is a self-hosted web file manager / WebDAV server. Prior to version 3.10.0, a broken access control issue in FileRise's ONLYOFFICE integration allows an authenticated user with read-only access to obtain a signed save callbackUrl for a file and then directly forge the ONLYOFFICE save callback to overwrite that file with attacker-controlled content. This issue has been patched in version 3.10.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00384 32nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed FileRise (error311): 3.10.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
error311FileRisebefore 3.10.03.10.0Patch availableCNA
  • FileRise Vendorerror311 Affected before 3.10.0 Fixed in 3.10.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:filerise:filerise:*:*:*:*:*:*:*:*before 3.10.0Vulnerableerror311
  • cpe:2.3:a:filerise:filerise:*:*:*:*:*:*:*:* Versions before 3.10.0 Vulnerable ·error311

Remediation

  • Fix · CNA FileRise (error311) Fixed in 3.10.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33330

References

Exploit 1

Patch 1

Other 1

  • TI-2026-25514 FileRise: Default Encryption Key Enables Token Forgery and Config Decryption CVSS 3.1HIGH 8.2
  • TI-2025-41705 FileRise vulnerable to Cross-Site Scripting (XSS) in SVG File Handling CVSS 3.1HIGH 8.9
  • TI-2026-25513 FileRise: WebDAV upload path bypasses filename validation enforced by regular uploads CVSS 3.1HIGH 8.8
  • TI-2026-25739 Path traversal in error311 FileRise CVSS 3.1HIGH 8.1
  • TI-2026-25512 FileRise has Unauthenticated Share Link Deletion CVSS 3.1MEDIUM 4.8
  • TI-2026-25873 FileRise has incorrect authorization in /api/file/snippet.php allows read_own users to read other users’ file content CVSS 3.1MEDIUM 4.3
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences