CVE-2023-33740Public exploitNetwork attack vector

Cloud source disclosure via Verify parameter tampering

Published May 30, 2023 · Updated Jan 13, 2025

Incorrect access control in luowice 3.5.18 allows attackers to access cloud source code information via a modified Verify parameter. The warning-message handler trusts the caller-controlled Verify value instead of validating the request origin, allowing the access check to be bypassed. The network-facing issue requires no authentication and is bounded to confidentiality exposure; integrity and service availability impacts are not reported.

CVSS severity7.5
High
EPSS probability1.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Incorrect access control in luowice 3.5.18 allows attackers to access cloud source code information via a modified Verify parameter. The warning-message handler trusts the caller-controlled Verify value instead of validating the request origin, allowing the access check to be bypassed. The network-facing issue requires no authentication and is bounded to confidentiality exposure; integrity and service availability impacts are not reported.

The record

CVE
CVE-2023-33740
Published
May 30, 2023
Updated
Jan 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-346, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

7.5CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-346Origin Validation Error
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo