This indicates an attempt to inject a hostile HTML or web script into News Manager Lite.
News Manager Lite is a news management program for web sites. It runs on Microsoft Windows platforms and it is built using ASP. Multiple vulnerabilities exist that allow users to inject an HTML or web script, because of insufficient filtering of user-supplied input. The following files are vulnerable: comment_add.asp, search.asp, category_news_headline.asp, more.asp, category_news.asp, and ews_sort.asp.
Expinion.net News Manager Lite 2.5.
Security Bypass, Cross Site Scripting, Manipulation of data.
Apply appropriate patch from the vendor or Upgrade to non-vulnerable version if available.