Advisory Published

CVE-2023-48300: Embed Privacy missing escaping for show_all attribute in opt-out shortcode

First published: Mon Nov 20 2023(Updated: )

The `Embed Privacy` plugin for WordPress that prevents the loading of embedded external content is vulnerable to Stored Cross-Site Scripting via `embed_privacy_opt_out` shortcode in versions up to, and including, 1.8.0 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. Version 1.8.1 contains a patch for this issue.


Affected SoftwareAffected VersionHow to fix
Epiph Embed Privacy<1.8.1

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Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2023-48300.

  • What is the title of the vulnerability?

    The title of the vulnerability is 'Embed Privacy missing escaping for show_all attribute in opt-out shortcode'.

  • What is the severity of CVE-2023-48300?

    The severity of CVE-2023-48300 is medium with a severity value of 6.3.

  • Which software is affected by CVE-2023-48300?

    The 'Embed Privacy' plugin for WordPress versions up to and including 1.8.0 is affected by CVE-2023-48300.

  • How can the vulnerability be exploited?

    The vulnerability can be exploited through Stored Cross-Site Scripting (XSS) via the 'embed_privacy_opt_out' shortcode.


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