CVE-2023-4021 — Cross-site Scripting in Modern Events Calendar Lite

CWE-79 — Cross-site Scripting4 documents4 sources
Severity
4.8MEDIUMNVD
CNA4.4
EPSS
0.2%
top 63.63%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Webnus Modern Events Calendar Lite
Timeline
PublishedOct 20

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 …

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NExploitability: 1.7 | Impact: 2.7

Affected Packages2 packages

Patches

Patch: webnus.net ↗Patch: webnus.net ↗

🔴Vulnerability Details

3
GHSA
GHSA-mxc9-v9vg-4xfw: 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↗2023-10-20
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CVEList
Modern Events Calendar lite < 7.1.0 - Authenticated (Admin+) Stored Cross-Site Scripting↗2023-10-20
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GHSA
Cross-site Scripting (XSS) in Website Settings name field↗2023-04-27
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CVE-2023-4021 — Cross-site Scripting | cvebase