Description
WordPress Plugin All-in-One Event Calendar is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin All-in-One Event Calendar version 2.5.18 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 2.5.19 or latest
References
https://wordpress.org/support/topic/xss-scripting-vulnerability-introduced-in-this-plugin/
https://plugins.svn.wordpress.org/all-in-one-event-calendar/trunk/readme.txt
Related Vulnerabilities
Oracle Application Server CVE-2008-1824 Vulnerability (CVE-2008-1824)
PHP Improper Input Validation Vulnerability (CVE-2012-2336)
MediaWiki Resource Management Errors Vulnerability (CVE-2015-2937)
Drupal Core 7.x Multiple Vulnerabilities (7.0 - 7.15)
Drupal Permissions, Privileges, and Access Controls Vulnerability (CVE-2008-2771)