CVE-2026-1126

lwj flow SVG File FormResource.java uploadFile unrestricted upload

State: Published
Severity: 5.3 Medium
Published: Jan 18, 2026
Updated: Feb 23, 2026
Reserved: Jan 17, 2026

Description

A security vulnerability has been detected in lwj flow up to a3d2fe8133db9d3b50fda4f66f68634640344641. This affects the function uploadFile of the file \flow-master\flow-front-rest\src\main\java\com\dragon\flow\web\resource\flow\FormResource.java of the component SVG File Handler. The manipulation of the argument File leads to unrestricted upload. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project was informed of the problem early through an issue report but has not responded yet.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS: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:P	VulDB
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	6.5 Medium	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-434 Unrestricted Upload
CWE-284 Improper Access Controls

Affected Products

Product	Versions
flowlwj	a3d2fe8133db9d3b50fda4f66f68634640344641Affected

References

VDB-341718 | lwj flow SVG File FormResource.java uploadFile unrestricted uploadvdb-entrytechnical-description
VDB-341718 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #735122 | https://gitee.com/lwj/flow flowable 1.0 Arbitrary File Uploadthird-party-advisory
https://gitee.com/lwj/flow/issues/IDIQSEexploitissue-tracking
https://gitee.com/lwj/flow/product

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