RCE in Error311 Filerise
CVE-2026-33072
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (13.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000
Affected products
- Error311 Filerise — versions < 3.9.0
- Filerise
Weakness classification (CWE)
References
- github.com/error311/FileRise/security/advisories/GHSA-f4xx-57cv-mg3x (Exploit, Vendor Advisory)
- github.com/error311/FileRise/releases/tag/v3.9.0 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-33072?
- CVE-2026-33072 is a high-severity vulnerability in Error311 Filerise, classified under Use of Hard-coded Credentials. CVSS score: 8.2/10. Published 2026-03-20.
- How severe is CVE-2026-33072?
- High severity. CVSS v3 base score is 8.2 out of 10.