CVE-2026-92746 Cross-site scripting in Gutenverse – WordPress Blocks, Page Builder & Site Editor
Authenticated contributors can inject arbitrary scripts via the Post Comment Block suffixMain attribute, 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-2026-92746?
CVE-2026-92746 is a medium-severity cross-site scripting vulnerability in jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor, published on 25 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Gutenverse – WordPress Blocks, Page Builder & Site Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Post Comment Block 'suffixMain' Attribute in all versions up to, and including, 4.0.8 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. WordPress core wp_kses_post sanitization does not mitigate this vulnerability because the payload is stored inside a Gutenberg block delimiter comment rather than as a raw HTML tag, and is only rendered as exploitable HTML at the PHP render stage.
Weakness: CWE-79
Which versions are affected by CVE-2026-92746?
How do I fix CVE-2026-92746?
No fix has been published for CVE-2026-92746 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-2026-92746 being exploited?
There is no known exploitation of CVE-2026-92746 in the wild and no public exploit code.
Sources
Also known as GHSA-q95q-8hph-jj29.