CVE-2026-36723Public exploitNetwork attack vector

Authenticated code execution via traversed file rename

Published Jun 9, 2026 · Updated Jun 9, 2026

Path traversal in BookCars 8.3 and earlier allows remote authenticated users to move server files through the /api/create-user endpoint. The userController create handler passes unvalidated contract.file and contract.language values into path.join and fs.rename, letting paths escape their designated directories. Successful exploitation requires authenticated access and same-filesystem paths; it can expose or overwrite files and execute code by replacing a dynamically imported module.

CVSS severity8.8
High
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in BookCars 8.3 and earlier allows remote authenticated users to move server files through the /api/create-user endpoint. The userController create handler passes unvalidated contract.file and contract.language values into path.join and fs.rename, letting paths escape their designated directories. Successful exploitation requires authenticated access and same-filesystem paths; it can expose or overwrite files and execute code by replacing a dynamically imported module.

The record

CVE
CVE-2026-36723
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 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?

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

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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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