CVE-2025-15227Network attack vector

Unauthenticated file read via absolute path traversal

Published Dec 29, 2025 · Updated Dec 29, 2025

Absolute path traversal in Welltend Technology BPMFlowWebkit before 5.0.5 allows remote attackers to read arbitrary system files. The server accepts an attacker-supplied absolute pathname through an undisclosed file-download interface and returns the referenced file outside its intended directory. The request requires no authentication or user interaction, and the published record reports file disclosure only, not modification or execution.

CVSS severity7.5
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Absolute path traversal in Welltend Technology BPMFlowWebkit before 5.0.5 allows remote attackers to read arbitrary system files. The server accepts an attacker-supplied absolute pathname through an undisclosed file-download interface and returns the referenced file outside its intended directory. The request requires no authentication or user interaction, and the published record reports file disclosure only, not modification or execution.

The record

CVE
CVE-2025-15227
Published
Dec 29, 2025
Updated
Dec 29, 2025
Vendor
Welltend Technology Corporation
Product
BPMFlowWebkit
Classifications
CWE-36, CAPEC-597, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 29, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <5.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Welltend Technology Corporation · BPMFlowWebkitversion=0 <5.0.5

Published CVSS scores

8.7TWCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5TWCERT/CCCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-36Absolute Path Traversal
CAPEC-597Absolute Path Traversal
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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