PT-2021-16196 · WordPress · Modern Events Calendar Lite

Shivam Rai · Published 2021-10-04 · Updated 2021-10-08 · CVE-2021-24687

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions The Modern Events Calendar Lite WordPress plugin versions prior to 5.22.2

Description The issue allows high privilege users to perform Cross-Site Scripting attacks due to the plugin not escaping some of its settings before outputting them in attributes, even when the unfiltered html capability is disallowed.

Recommendations For versions prior to 5.22.2, update to version 5.22.2 or later to resolve the issue. As a temporary workaround, consider restricting the use of the plugin's settings to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24687

Affected Products

Modern Events Calendar Lite

References · 4

• 🔥 https://wpscan.com/vulnerability/300ba418-63ed-4c03-9031-263742ed522e · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-24687 · Security Note
• https://osv.dev/vulnerability/CVE-2021-24687 · Vendor Advisory
• https://t.me/cibsecurity/29857 · Telegram Post