Sensitive Data Exposure in WP FullCalendar by Marcus
CVE-2026-24523

7.5HIGH

Key Information:

Vendor

WordPress
Status
WP Fullcalendar
Vendor
CVE Published:
23 January 2026

What is CVE-2026-24523?

A vulnerability exists in the WP FullCalendar plugin developed by Marcus, allowing unauthorized retrieval of sensitive embedded data. This impacts all versions from n/a up to 1.6, potentially exposing critical information to malicious actors. It's essential for users to update to the latest version to mitigate risks and secure data integrity.

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Deploy the Patch

Affected Version(s)

WP FullCalendar <= n/a

References

https://patchstack.com/database/Wordpress/Plugin/wp-fullc...
vdb-entry

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nabil Irawan | Patchstack Bug Bounty Program
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