Multiple vulnerabilities have been discovered in the LeagueManager plugin for WordPress, which can be exploited by malicious people to conduct cross-site scripting attacks.
1) Input passed via the "group" parameter to wp-admin/admin.php (when "page" is set to "leaguemanager" and "subpage" is set to "show-league") is not properly sanitised in wp-content/plugins/leaguemanager/admin/show-league.php before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
2) Input passed via the "league_id" and "season" parameters to wp-admin/admin.php (when "page" is set to "leaguemanager" and "subpage" is set to "team") is not properly sanitised in wp-content/plugins/leaguemanager/admin/team.php before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
The vulnerabilities are confirmed in version 3.7. Prior versions may also be affected.