Medium severity5.4NVD Advisory· Published Feb 28, 2020· Updated Jun 17, 2026

CVE-2020-9459

Description

Multiple Stored Cross-site scripting (XSS) vulnerabilities in the Webnus Modern Events Calendar Lite plugin through 5.1.6 for WordPress allows remote authenticated users (with minimal permissions) to inject arbitrary JavaScript, HTML, or CSS via Ajax actions. This affects mec_save_notifications and import_settings.

Affected products

WordPress/Modern Events Calendar Litellm-fuzzy
Range: <=5.1.6
Package: https://wordpress.org/plugins/modern-events-calendar-lite

Patches

Vulnerability mechanics

References

wpvulndb.com/vulnerabilities/10100nvdExploitThird Party Advisory
www.wordfence.com/blog/2020/02/site-takeover-campaign-exploits-multiple-zero-day-vulnerabilities/nvdExploitThird Party Advisory

News mentions

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