EUVD-2026-20566
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3Description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the REST endpoint POST /api/v1/ai_assistance/text_tools/:id was not checking if a user is privileged to use the text tool, resulting in being able to use it in all situations. This vulnerability is fixed in 7.0.1 and 6.5.4.
Analysis
Bypass of access controls in Zammad REST API endpoint POST /api/v1/ai_assistance/text_tools/:id allows authenticated users to utilize AI text tools without proper privilege verification in versions prior to 7.0.1 and 6.5.4. An authenticated attacker can invoke AI assistance features regardless of their assigned permissions, leading to unauthorized consumption of text tool functionality and potential information disclosure through unrestricted tool access.
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