FileRise: Default Encryption Key Enables Token Forgery and Config Decryption
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-798.
Summary
FileRise is a self-hosted web file manager / WebDAV server. In versions prior to 3.9.0, a hardcoded default encryption key (default_please_change_this_key) is used for all cryptographic operations — HMAC token generation, AES config encryption, and session tokens — allowing any unauthenticated attacker to forge upload tokens for arbitrary file upload to shared folders, and to decrypt admin configuration secrets including OIDC client secrets and SMTP passwords. FileRise uses a single key (PERSISTENT_TOKENS_KEY) for all crypto operations. The default value default_please_change_this_key is hardcoded in two places and used unless the deployer explicitly overrides the environment variable. This issue is fixed in version 3.9.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA FileRise (error311) Fixed in 3.9.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-33072
References
More error311 Filerise vulnerabilities
- 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-2026-25740 FileRise ONLYOFFICE integration allows read-only users to overwrite files via forged save callback CVSS 3.1HIGH 7.1
- 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
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences