CVE-2023-4021

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.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.7 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://webnus.net/modern-events-calendar/change-log/	Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/f213fb42-5bab-4017-80ea-ce6543031af2?source=cve	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:webnus:modern_events_calendar_lite:*:*:*:*:*:wordpress:*:*

History

26 Oct 2023, 14:55

Type	Values Removed	Values Added
CPE		cpe:2.3:a:webnus:modern_events_calendar_lite::::::wordpress::*
CWE		CWE-79
First Time		Webnus Webnus modern Events Calendar Lite
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.8
References	~~(MISC) https://webnus.net/modern-events-calendar/change-log/ -~~	(MISC) https://webnus.net/modern-events-calendar/change-log/ - Patch
References	~~(MISC) https://www.wordfence.com/threat-intel/vulnerabilities/id/f213fb42-5bab-4017-80ea-ce6543031af2?source=cve -~~	(MISC) https://www.wordfence.com/threat-intel/vulnerabilities/id/f213fb42-5bab-4017-80ea-ce6543031af2?source=cve - Third Party Advisory

20 Oct 2023, 08:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-10-20 08:15

Updated : 2023-12-10 15:14

NVD link : CVE-2023-4021

Mitre link : CVE-2023-4021

CVE.ORG link : CVE-2023-4021

JSON object : View

Products Affected

webnus

modern_events_calendar_lite

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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