GET /forum.asp whichpage Parameter Open Redirect Weakness

[attritionorg]

157.230.238.66 (157.230.238.66) - - [10/Jul/2023:06:17:07 -0600] "GET /forum.asp?mydate=5%2F10%2F2001+11%3A42%3A51+PM&pagesize=20&whichpage=https%3A%2F%2Fwww.google.com%2Fmi%2F HTTP/1.1" 404 741 "http://attrition.org:80/forum.asp?mydate=5%2F10%2F2001+11%3A42%3A51+PM&pagesize=20&whichpage=https%3A%2F%2Fwww.google.com%2Fmi%2F" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.92 Safari/537.36"

No obvious matches at time of log.

[attritionorg]

n7-dc2.mention.net (51.15.164.30) - - [24/Aug/2024:17:57:44 -0600] "HEAD /forum.asp?mydate=5%2F10%2F2001+11%3A42%3A51+PM&pagesize=20&whichpage=https%3A%2F%2Fwww.google.com%2Fmi%2F HTTP/1.1" 404 - "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36"

Odd timing, another hit 5 minutes after posting this.