Stored XSS on https://apps.topcoder.com/wiki/plugins/socialbookmarking/updatebookmark.action

## Summary: Hi :) Adding javascript url causes to stored XSS when creating bookmark. ## Steps To Reproduce: Go to https://apps.topcoder.com/wiki/plugins/socialbookmarking/updatebookmark.action . Write `blocked:alert(document.domain)` on url input and fill other areas. After create, go `https://apps.topcoder.com/wiki/display/tcwiki/<TITLE>` and when you click the title on this page, XSS will execute. PoC: https://apps.topcoder.com/wiki/display/tcwiki/powerpuff_hackerone_test {F816754} ## Impact XSS can use to steal cookies or to run arbitrary code on victim's browser.