WS-2021-0009
Published:May 14, 2026
Updated:May 14, 2026
When processing theming resources (i.e. *.less files) with less-openui5 before 0.10.0 that originate from an untrusted source, those resources might contain JavaScript code which will be executed in the context of the build process.
Affected Packages
less-openui5 (NPM):
Affected version(s) >=0.1.0 <0.10.0Fix Suggestion:
Update to version 0.10.0dotlessbuildtasksdotnet (NUGET):
Affected version(s) >=2.0.0 <=2.1.7-rc1Fix Suggestion:
Update to version no_fixwinless.lessc (NUGET):
Affected version(s) =1.0.14Fix Suggestion:
Update to version no_fixbundler (NUGET):
Affected version(s) >=1.1.21 <1.1.30Fix Suggestion:
Update to version 1.1.30Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE