The Lanap BotDetect APS.NET CAPTCHA component before 1.5.4.0 stores the UUID and hash for a CAPTCHA in the ViewState of a page, which makes it easier for remote attackers to conduct automated attacks by "replaying the ViewState for a known number."
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.2%