Stored Cross-Site Scripting in Embed Calendly Plugin for WordPress
CVE-2023-4995

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Emc – Easily Embed Calendly Scheduling
Vendor
CVE Published:
13 October 2023

What is CVE-2023-4995?

The Embed Calendly plugin for WordPress exhibits a vulnerability that allows authenticated attackers with contributor-level permissions and higher to carry out Stored Cross-Site Scripting (XSS) attacks. This flaw arises from inadequate input sanitization and output escaping on user-supplied attributes via the 'calendly' shortcode. Consequently, attackers can inject malicious web scripts into pages, leading to potential execution of these scripts when users access the compromised pages.

Affected Version(s)

EMC – Easily Embed Calendly Scheduling 0 <= 3.6

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/embed-calendly...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lana Codes
.