CVE-2025-9851
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-17

Last updated on: 2025-09-19

Assigner: Wordfence

Description
The Appointmind plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'appointmind_calendar' shortcode in all versions up to, and including, 4.1.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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Meta Information
Published
2025-09-17
Last Modified
2025-09-19
Generated
2026-06-16
AI Q&A
2025-09-17
EPSS Evaluated
2026-06-15
NVD
CVE-2025-9851
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
appointmind appointmind *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Appointmind plugin for WordPress, specifically in the 'appointmind_calendar' shortcode. It occurs because the plugin does not properly sanitize or escape user-supplied attributes, allowing authenticated users with contributor-level access or higher to inject malicious scripts. These scripts execute whenever any user views the affected page.

Impact Analysis

The vulnerability allows attackers with contributor-level access to inject malicious scripts that execute in the browsers of users who visit the infected pages. This can lead to theft of user credentials, session hijacking, defacement, or other malicious actions performed in the context of the affected website.

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