Description

WordPress Plugin Modern Events Calendar Lite 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 Modern Events Calendar Lite version 5.22.1 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 5.22.2 or latest

References

https://sploitus.com/exploit?id=WPEX-ID:300BA418-63ED-4C03-9031-263742ED522E

https://plugins.svn.wordpress.org/modern-events-calendar-lite/trunk/readme.txt

Related Vulnerabilities

WordPress Plugin Paid Memberships Pro-Restrict Member Access to Content, Courses, Communities-Free or Paid Subscriptions Cross-Site Scripting (2.5.9.1)

WordPress Plugin Nested Pages Multiple Vulnerabilities (3.1.15)

Chamilo Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2021-38745)

Oracle JRE CVE-2013-5854 Vulnerability (CVE-2013-5854)

PHP Other Vulnerability (CVE-2005-3390)

Severity

High

Classification

CVE-2021-24687 CWE-79 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS