CVE-2026-33072

FileRise: Default Encryption Key Enables Token Forgery and Config Decryption

HIGH
7.5
CVSS Score
Published: March 20, 2026 at 08:31 AM UTC
Updated: June 17, 2026 at 10:36 AM UTC
2 products affected across 2 vendorsFileriseFileRise

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Severity
HIGH7.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.9.0
Affected range stops below 3.9.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/error311/FileRise/security/advisories/GHSA-f4xx-57cv-mg3x
x_refsource_MISCProductRelease Notes
Source: cverecord
https://github.com/error311/FileRise/releases/tag/v3.9.0

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-798CWE-1188

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