CVE-2022-0364: Modern Events Calendar Lite < 6.4.0 - Contributor+ Stored Cross Site Scripting

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 69.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-03-21 · updated 2026-06-17
Weakness: CWE-79

Description

The Modern Events Calendar Lite WordPress plugin before 6.4.0 does not sanitize and escape some of the Hourly Schedule parameters which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks

Affected products

Modern Events Calendar Lite: before 6.4.0 — fixed in 6.4.0

How to fix

Upgrade to a fixed version: Modern Events Calendar Lite 6.4.0. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/0eb40cd5-838e-4b53-994d-22cf7c8a6c50
https://wpscan.com/vulnerability/0eb40cd5-838e-4b53-994d-22cf7c8a6c50

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