CVE-2023-4283: EmbedPress <= 3.8.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
The EmbedPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'embedpresscalendar' shortcode in versions up to, and including, 3.8.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2023-4283.
What is the title of the vulnerability?
The title of the vulnerability is 'The EmbedPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting'.
What is the severity of CVE-2023-4283?
The severity of CVE-2023-4283 is medium with a CVSS score of 5.4.
What is the affected software?
The affected software is EmbedPress plugin for WordPress versions up to, and including, 3.8.2.
How can the vulnerability be exploited?
The vulnerability can be exploited through the 'embedpress_calendar' shortcode, allowing authenticated attackers to execute arbitrary JavaScript code.