CVE-2026-27094

Page Builder Gutenberg Blocks – CoBlocks <= 3.1.16 - Authenticated (Contributor+) Stored Cross-Site Scripting

mediumImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
6.4
CVSS Score
6.4
CVSS Score
medium
Severity
3.1.17
Patched in
70d
Time to patch

Description

The Page Builder Gutenberg Blocks – CoBlocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.1.16 due to insufficient input sanitization and output escaping. 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.

CVSS Vector Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Low
Confidentiality
Low
Integrity
None
Availability

Technical Details

Affected versions<=3.1.16
PublishedJanuary 7, 2026
Last updatedMarch 17, 2026
Affected plugincoblocks

Source Code

WordPress.org SVN

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