CVE-2025-15228: WELLTEND TECHNOLOGY｜ BPMFlowWebkit - Arbitrary File Upload

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-29 · updated 2026-10-07
Weakness: CWE-434

Description

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.

Affected products

WELLTEND TECHNOLOGY BPMFlowWebkit: before 5.0.5 — fixed in 5.0.5

How to fix

Upgrade to a fixed version: WELLTEND TECHNOLOGY BPMFlowWebkit 5.0.5. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/en/cp-139-10605-426b6-2.html
https://www.twcert.org.tw/tw/cp-132-10604-c65aa-1.html

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