WordPress Realteo plugin 1.2.3 and prior contains an unauthenticated reflected cross-site scripting vulnerability due to improper sanitization of keyword_search, search_radius. _bedrooms and _bathrooms GET parameters before outputting them in its properties page.
View the template here CVE-2021-24237.yaml
References:
https://nvd.nist.gov/vuln/detail/CVE-2021-24237