What’s Vulnerable › Vulnerabilities

CVE-2021-25046: Modern Events Calendar Lite < 6.2.0 - Subscriber+ Category Add Leading to Stored XSS

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-17 · updated 2026-06-17
• Weakness: CWE-79

Description

The Modern Events Calendar Lite WordPress plugin before 6.2.0 alloed any logged-in user, even a subscriber user, may add a category whose parameters are incorrectly escaped in the admin panel, leading to stored XSS.

Affected products

• Modern Events Calendar Lite: before 6.2.0 — fixed in 6.2.0

How to fix

Upgrade to a fixed version: Modern Events Calendar Lite 6.2.0. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/19c2f456-a41e-4755-912d-13683719bae6
• https://wpscan.com/vulnerability/19c2f456-a41e-4755-912d-13683719bae6

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