CVE-2026-33072Public exploitNetwork attack vector

Unauthenticated upload and secret decryption via hardcoded key

Published Mar 20, 2026 · Updated Mar 20, 2026

Hardcoded key use in error311 FileRise before 3.9.0 allows remote attackers to forge upload tokens and decrypt configuration secrets. The Dockerfile and config/config.php supply one published PERSISTENT_TOKENS_KEY to HMAC, AES-CBC, and session-token operations when no override exists. A shared-folder URL enables unauthenticated file upload when uploads are enabled; secret decryption additionally requires read access to adminConfig.json.

CVSS severity8.2
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hardcoded key use in error311 FileRise before 3.9.0 allows remote attackers to forge upload tokens and decrypt configuration secrets. The Dockerfile and config/config.php supply one published PERSISTENT_TOKENS_KEY to HMAC, AES-CBC, and session-token operations when no override exists. A shared-folder URL enables unauthenticated file upload when uploads are enabled; secret decryption additionally requires read access to adminConfig.json.

The record

CVE
CVE-2026-33072
Published
Mar 20, 2026
Updated
Mar 20, 2026
Vendor
error311
Product
FileRise
Classifications
CWE-1188, CWE-798, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

error311 · FileRiseversion=< 3.9.0

Published CVSS scores

8.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1188Initialization of a Resource with an Insecure Default
CWE-798Use of Hard-coded Credentials
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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