CVE-2023-33695

Local file disclosure via insecure temporary-file recreation

Published Jun 13, 2023 · Updated Jan 3, 2025

Insecure temporary-file permissions in Hutool Core before 5.8.19 allow local users to read or alter temporary files. FileUtil.createTempFile uses java.io.File.createTempFile and can delete the protected file before recreating it with createNewFile, losing restrictive permissions. Exploitation requires a co-resident local user, a shared Unix-like temporary directory, and a caller that places sensitive data in the created file; the upstream report excludes macOS and Windows.

CVSS severity7.1
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure temporary-file permissions in Hutool Core before 5.8.19 allow local users to read or alter temporary files. FileUtil.createTempFile uses java.io.File.createTempFile and can delete the protected file before recreating it with createNewFile, losing restrictive permissions. Exploitation requires a co-resident local user, a shared Unix-like temporary directory, and a caller that places sensitive data in the created file; the upstream report excludes macOS and Windows.

The record

CVE
CVE-2023-33695
Published
Jun 13, 2023
Updated
Jan 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-732, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 3, 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 vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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