CVE-2025-9807 - CVE House

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Status published High CVE-2025-9807

The Events Calendar <= 6.15.1 - Unauthenticated SQL Injection

7.5 CVSS

Vulnerability Description

The The Events Calendar plugin for WordPress is vulnerable to time-based SQL Injection via the ‘s’ parameter in all versions up to, and including, 6.15.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Michael Mazzolini

References

More from stellarwp

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GiveWP – Donation Plugin and Fundraising Platform <= 4.5.0 - Authenticated (GiveWP worker+) Stored Cross-Site Scripting

Kadence Blocks – Gutenberg Blocks for Page Builder Features <= 3.5.10 - Authenticated (Contributor+) Stored Cross-Site Scripting via `redirectURL` Parameter

Affected Vendor

stellarwp

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Affected Software

The Events Calendar

Vulnerable Versions:

0

Timeline

Official Publish: September 12th, 2025

Last Modified: April 8th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1059 Command and Scripting Interpreter

T1213.006 Databases

T1485 Data Destruction