CVE-2026-15950 Cross-site scripting in Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 700+ Patterns, 58 Blocks & Templates
Authenticated contributors can inject arbitrary scripts via block attributes, leading to stored XSS execution for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15950?
CVE-2026-15950 is a medium-severity cross-site scripting vulnerability in cozythemes Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 700+ Patterns, 58 Blocks & Templates, published on 1 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'layoutCircle.alignment' Block Attribute in all versions up to, and including, 2.2.11 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-15950?
How do I fix CVE-2026-15950?
No fix has been published for CVE-2026-15950 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-15950 being exploited?
There is no known exploitation of CVE-2026-15950 in the wild and no public exploit code.
Sources
Also known as GHSA-9x5x-292c-x6r9.