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CVE-2026-4801

MEDIUM

6.4

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.16.4

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado4/18/2026

Ultima modificacao4/22/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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