CVE-2023-4021
Modern Events Calendar lite < 7.1.0 - Authenticated (Admin+) Stored Cross-Site Scripting
CVSS Score
4.4
EPSS Score
0.0%
EPSS Percentile
0th
The Modern Events Calendar lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Google API key and Calendar ID in versions up to, but not including, 7.1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
| CWE | CWE-79 |
| Vendor | webnus/ |
| Product | modern events calendar lite |
| Published | Oct 20, 2023 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
webnus/ / Modern Events Calendar Lite
0 < 7.1.0
References
Credits
Marco Wotschka