Cross-site scripting vulnerability in the default HTTP 500 error script (500error.jsp) for Macromedia Sitespring 1.2.0 (277.1) allows remote attackers to execute arbitrary web script via a link to 500error.jsp with the script in 1the et parameter.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.067
EPSS Ranking 90.9%