WordPress security changelog
MEDIUM CVE-2026-75019 Deferred

Cozy Blocks permits Contributor-level stored cross-site scripting

Cozy Blocks through 2.2.16 lets a Contributor or higher inject a quote-breakout payload through cozyHoverEffect.boxShadow.color. Because the value contains no angle brackets, it survives save-time filtering and becomes an event-handler attribute when the block renders, executing script for users who view the affected content.

CVE / CNA score 6.4 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 700+ Patterns, 58 Blocks & Templates
Plugin slug
cozy-addons
Affected
<= 2.2.16
Safe version
2.2.17
Published
Aug 25, 2026
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Aug 25, 2026 and is one of 10 known issues for this plugin.

What to do

Update, patch or deactivate.

Update to 2.2.17 or later, remove untrusted hover-effect values, and invalidate privileged sessions if malicious content was viewed.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 700+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via cozyHoverEffect Block Attribute in all versions up to, and including, 2.2.16 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. The payload survives wp_kses_post on save because it contains no angle brackets — only a double-quote breakout of the cozyHoverEffect.boxShadow.color attribute value — allowing event-handler injection at the render stage.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

Primary and upstream sources