Prototype pollution vulnerability in searchParamsToObject() is leading to a persistent XSS in Maps. URL parameter processing was not filtering dangerous properties like __proto__, combined with jQuery's unsafe element creation that traversed the prototype chain.
Credits
Zabbix wants to thank Perce, 6o_o9 and Nassim BETTACH @Shenron for submitting this report on the HackerOne bug bounty platform.
