Cross-site scripting (XSS) vulnerability in CERN Proxy Server allows remote attackers to execute script as other users via a link to a non-existent page whose name contains the script, which is inserted into the resulting error page.
Cross-site scripting vulnerability in Proxomitron Naoko-4 BetaFour and earlier allows remote attackers to execute arbitrary script on other clients via an incorrect URL containing the malicious script, which is printed back in an error message.
Cross-site scripting vulnerability in CGIWrap before 3.7 allows remote attackers to execute arbitrary Javascript on other web clients by causing the Javascript to be inserted into error messages that are generated by CGIWrap.