CVE-2021-33981Public exploitNetwork attack vector

Authenticated license-data disclosure via customerId substitution

Published Sep 8, 2021 · Updated Aug 4, 2024

IDOR in the license retrieval function in FWC Fish | Hunt FL 3.8.0 and earlier allows remote authenticated users to read other licensees’ data. The getcustomerlicense endpoint accepts a caller-controlled customerId in its POST body and returns the matching record without confirming ownership. A valid authorization token is required, and successful abuse discloses names, birth dates, home addresses, license details, harvest records, and license images.

CVSS severityUnavailable
Unscored
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in the license retrieval function in FWC Fish | Hunt FL 3.8.0 and earlier allows remote authenticated users to read other licensees’ data. The getcustomerlicense endpoint accepts a caller-controlled customerId in its POST body and returns the matching record without confirming ownership. A valid authorization token is required, and successful abuse discloses names, birth dates, home addresses, license details, harvest records, and license images.

The record

CVE
CVE-2021-33981
Published
Sep 8, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

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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