Description
WordPress Plugin The Holiday 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 The Holiday Calendar version 1.11.2 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.11.3 or latest
References
https://packetstormsecurity.com/files/132918/WordPress-The-Holiday-Calendar-1.11.2-XSS.html
https://wordpress.org/plugins/the-holiday-calendar/changelog/
Related Vulnerabilities
Jenkins Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2017-2609)
Joomla! Core 1.0.x Multiple Vulnerabilities (1.0.0 - 1.0.3)
Joomla! Core 3.x.x Security Bypass (3.8.0 - 3.9.3)
WordPress Plugin SecuPress Free-WordPress Security Security Bypass (1.4.13)
WordPress Plugin Get Recent Comments Cross-Site Scripting (2.0.6)