← Voltar para CVEs

CVE-2026-2121

MEDIUM

4.4

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.14.4

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosHIGH

Interacao do usuarioNONE

Publicado3/21/2026

Ultima modificacao3/23/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-79

Referencias

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)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.