Page Builder Gutenberg Blocks <= 3.1.16 - Authenticated (Contributor+) Stored Cross-Site Scripting via External iCal Feed Data
Published Apr 18, 2026
6.4
MEDIUMCVSS 3.1
EPSS 0.43%
Description
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.
Affected products
-
- Version 0StatusaffectedConstraints<=3.1.16
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Godaddy | Page Builder Gutenberg Blocks – CoBlocks | unaffected |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (14)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-23650 Advisory
- https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L218
- https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L245
- https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L246
- https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L255
- https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L91
- https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L218
- https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L245
- https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L246
- https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L255
- https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L91
- https://plugins.trac.wordpress.org/changeset/3475789/coblocks/trunk/src/blocks/events/index.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fcoblocks/tags/3.1.16&new_path=%2Fcoblocks/tags/3.1.17
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bde0aef3-aa61-4ee7-9cbf-9f51cb5ac700?source=cve
Change history (0)
No recorded changes yet.