XSS in Cozythemes Cozy Blocks – Website Builder & Business Growth Toolkit | Popups, Lead Forms Inbox
CVE-2026-109978
The Cozy Blocks – Website Builder for WordPress Block Editor | Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'productRating.iconColor' parameter in all versions up to, and including, 2.2.27 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 vulnerable code path is only reached when the productRating option is enabled and the associated WooCommerce product has a non-zero rating.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (15.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-109978?
- CVE-2026-109978 is a medium-severity vulnerability in Cozythemes Cozy Blocks – Website Builder & Business Growth Toolkit | Popups, Lead Forms Inbox, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-10-28.
- How severe is CVE-2026-109978?
- Medium severity. CVSS v3 base score is 6.4 out of 10.