CVE-2021-45467Public exploitNetwork attack vector

Unauthenticated API key registration via null-byte path traversal

Published Dec 26, 2022 · Updated Apr 12, 2025

Missing authorization in CWP before 0.9.8.1107 allows remote attackers to register arbitrary API keys via crafted /user/loader.php requests. The loader endpoint accepts null-byte-encoded traversal in its scripts parameter and includes the account_new_create API handler without authorization checks. The request requires no credentials or user interaction and can grant unauthorized CWP API access; chaining with related flaws can enable root-level command execution.

CVSS severity9.8
Critical
EPSS probability70.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in CWP before 0.9.8.1107 allows remote attackers to register arbitrary API keys via crafted /user/loader.php requests. The loader endpoint accepts null-byte-encoded traversal in its scripts parameter and includes the account_new_create API handler without authorization checks. The request requires no credentials or user interaction and can grant unauthorized CWP API access; chaining with related flaws can enable root-level command execution.

The record

CVE
CVE-2021-45467
Published
Dec 26, 2022
Updated
Apr 12, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 12, 2025Record 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-862CWE-862 Missing Authorization
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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