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CVE-2026-4801

MEDIUM

6.4

Descripcion

The Page Builder Gutenberg Blocks – CoBlocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via external iCal feed data in all versions up to, and including, 3.1.16 due to insufficient output escaping of event titles, descriptions, and locations fetched from external iCal feeds in the Events block rendering function. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Detalles CVE

Puntuacion CVSS v3.16.4

SeveridadMEDIUM

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado4/18/2026

Ultima modificacion4/22/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-79

Referencias

https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L218(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L245(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L246(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L255(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L91(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L218(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L245(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L246(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L255(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L91(security@wordfence.com)

https://plugins.trac.wordpress.org/changeset/3475789/coblocks/trunk/src/blocks/events/index.php(security@wordfence.com)

https://plugins.trac.wordpress.org/changeset?old_path=%2Fcoblocks/tags/3.1.16&new_path=%2Fcoblocks/tags/3.1.17(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/bde0aef3-aa61-4ee7-9cbf-9f51cb5ac700?source=cve(security@wordfence.com)

Correlaciones IOC

Sin correlaciones registradas

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