This vulnerability is handled as CVE-2021-42750. The attack may be launched remotely. Furthermore, there is an exploit available.
CVE-2021-42750 | ThingsBoard 3.3.1 Rule Engine title cross site scripting (ID 167999 / EDB-51003)
This vulnerability is handled as CVE-2021-42750. The attack may be launched remotely. Furthermore, there is an exploit available.
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