CVE-2025-4893Public exploitNetwork attack vector

Arbitrary file write via traversal filename

Published May 18, 2025 · Updated May 19, 2025

Path traversal in CoinExchange commit 8adf508b996020d3efbeeb2473d7235bd01436fa allows remote attackers to write files outside the upload directory. The uploadLocalImage path passes MultipartFile.getOriginalFilename() to uploadFile, which appends it to uploadPath without normalization or containment checks. The admin upload endpoint requires no login; a crafted multipart filename writes attacker-supplied content to an arbitrary filesystem path.

CVSS severity5.3
Medium
EPSS probability0.44%
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 CoinExchange commit 8adf508b996020d3efbeeb2473d7235bd01436fa allows remote attackers to write files outside the upload directory. The uploadLocalImage path passes MultipartFile.getOriginalFilename() to uploadFile, which appends it to uploadPath without normalization or containment checks. The admin upload endpoint requires no login; a crafted multipart filename writes attacker-supplied content to an arbitrary filesystem path.

The record

CVE
CVE-2025-4893
Published
May 18, 2025
Updated
May 19, 2025
Vendor
jammy928
Product
CoinExchange
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 18, 2025CVE publishedPublication date reported by the CVE source.
  2. May 19, 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=8adf508b996020d3efbeeb2473d7235bd01436fa

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

jammy928 · CoinExchangeversion=8adf508b996020d3efbeeb2473d7235bd01436fa

Published CVSS scores

5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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-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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