medium
5.3
CWE
200
Advisory Published
Updated

CVE-2023-5561: WordPress < 6.3.2 - Unauthenticated Post Author Email Disclosure

First published: Mon Oct 16 2023(Updated: )

The Popup Builder WordPress plugin through 4.1.15 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Credit: contact@wpscan.com contact@wpscan.com

Affected SoftwareAffected VersionHow to fix
WordPress WordPress>=4.7<4.7.27
WordPress WordPress>=4.8<4.8.23
WordPress WordPress>=4.9<4.9.24
WordPress WordPress>=5.0<5.0.20
WordPress WordPress>=5.1<5.1.17
WordPress WordPress>=5.2<5.2.19
WordPress WordPress>=5.3<5.3.16
WordPress WordPress>=5.4<5.4.14
WordPress WordPress>=5.5<5.5.13
WordPress WordPress>=5.6<5.6.12
WordPress WordPress>=5.7<5.7.10
WordPress WordPress>=5.8<5.8.8
WordPress WordPress>=5.9<5.9.8
WordPress WordPress>=6.0<6.0.6
WordPress WordPress>=6.1<6.1.4
WordPress WordPress>=6.2<6.2.3
WordPress WordPress>=6.3<6.3.2

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-5561?

    The severity of CVE-2023-5561 is medium with a CVSS score of 5.3.

  • What is the affected software for CVE-2023-5561?

    The Popup Builder WordPress plugin versions 4.1.15 and earlier are affected.

  • How can a high privilege user exploit CVE-2023-5561?

    A high privilege user such as an admin can exploit CVE-2023-5561 to perform Stored Cross-Site Scripting attacks.

  • Can CVE-2023-5561 be exploited even if unfiltered_html capability is disallowed?

    Yes, CVE-2023-5561 can be exploited even when the unfiltered_html capability is disallowed.

  • Is there a fix for CVE-2023-5561?

    Yes, make sure to update the Popup Builder WordPress plugin to version 4.1.16 or later to fix CVE-2023-5561.

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