CVE-2023-4021

Published Oct 20, 2023

Last updated a year ago

Overview

Description
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.
Source
security@wordfence.com
NVD status
Modified

Risk scores

CVSS 3.1

Type
Primary
Base score
4.8
Impact score
2.7
Exploitability score
1.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Severity
MEDIUM

Weaknesses

nvd@nist.gov
CWE-79

Social media

Hype score
Not currently trending

Configurations