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CVE-2026-2121

MEDIUM

4.4

Beschreibung

The Weaver Show Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'add_class' parameter in all versions up to, and including, 1.8.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This primarily affects multisite installations where Administrators do not have the unfiltered_html capability.

CVE Details

CVSS v3.1 Bewertung4.4

SchweregradMEDIUM

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

AngriffsvektorNETWORK

KomplexitatHIGH

Erforderliche PrivilegienHIGH

BenutzerinteraktionNONE

Veroffentlicht3/21/2026

Zuletzt geandert3/23/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-79

Referenzen

https://plugins.trac.wordpress.org/browser/show-posts/tags/1.8.1/includes/posts-widgets.php#L32(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/show-posts/tags/1.8.1/includes/posts-widgets.php#L45(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/show-posts/trunk/includes/posts-widgets.php#L32(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/show-posts/trunk/includes/posts-widgets.php#L45(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/e0d525ab-a86d-4750-9d16-731cbc0a626e?source=cve(security@wordfence.com)

https://youtu.be/kbSqUuEAyho(security@wordfence.com)

IOC Korrelationen

Keine Korrelationen erfasst

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