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CVE-2026-4801

MEDIUM

6.4

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung6.4

SchweregradMEDIUM

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

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienLOW

BenutzerinteraktionNONE

Veroffentlicht4/18/2026

Zuletzt geandert4/22/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-79

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

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