What is CVE-2025-15228?

CVE-2025-15228 is a critical-severity vulnerability in Welltend Bpmflowwebkit, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2025-12-29.

How severe is CVE-2025-15228?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Welltend Bpmflowwebkit

CVE-2025-15228

BPMFlowWebkit developed by WELLTEND TECHNOLOGY has a Arbitrary File Upload vulnerability, allowing unauthenticated remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

Vulnerability class: Unrestricted File Upload

EPSS: 0.005 (41.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Welltend Bpmflowwebkit
Welltend Technology Bpmflowwebkit — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

twcert@cert.org.tw (Third Party Advisory, third-party-advisory)
twcert@cert.org.tw (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2025-15228?: CVE-2025-15228 is a critical-severity vulnerability in Welltend Bpmflowwebkit, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2025-12-29.
How severe is CVE-2025-15228?: Critical severity. CVSS v3 base score is 9.8 out of 10.