CVE-2025-4511Public exploitNetwork attack vector

Authenticated arbitrary file write via upload filename

Published May 10, 2025 · Updated May 12, 2025

Path traversal in vector4wang spring-boot-quick 20250422 allows remote authenticated users to write files outside the upload directory. The /transfer handler passes the multipart filename to Img2TxtService.save, which joins it to FILE_PATH without rejecting traversal segments before FileOutputStream writes the supplied bytes. Access to the endpoint and a filename ending in jpg or png are required; successful exploitation places attacker-controlled image data at a chosen filesystem path.

CVSS severity5.3
Medium
EPSS probability0.55%
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 vector4wang spring-boot-quick 20250422 allows remote authenticated users to write files outside the upload directory. The /transfer handler passes the multipart filename to Img2TxtService.save, which joins it to FILE_PATH without rejecting traversal segments before FileOutputStream writes the supplied bytes. Access to the endpoint and a filename ending in jpg or png are required; successful exploitation places attacker-controlled image data at a chosen filesystem path.

The record

CVE
CVE-2025-4511
Published
May 10, 2025
Updated
May 12, 2025
Vendor
vector4wang
Product
spring-boot-quick
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 10, 2025CVE publishedPublication date reported by the CVE source.
  2. May 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?

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  1. Affected versionversion=20250422

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

vector4wang · spring-boot-quickversion=20250422

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P

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

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Technologies

Your stack

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Your stack

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