CVE-2026-7465 Code injection in Spectra Gutenberg Blocks – Website Builder for the Block Editor
Authenticated contributors can execute arbitrary code on the server by injecting malicious block attributes into WordPress posts.
- 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-2026-7465?
CVE-2026-7465 is a high-severity code injection vulnerability in brainstormforce Spectra Gutenberg Blocks – Website Builder for the Block Editor, published on 30 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Spectra Gutenberg Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.19.25. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server. Exploitation requires a two-block payload embedded in post content: the first block registers a fake uagb/-prefixed block type with an attacker-specified render_callback, and the second block of the same fake type triggers invocation of that callback via call_user_func() during sequential block rendering in the same page request.
Weakness: CWE-269
Which versions are affected by CVE-2026-7465?
How do I fix CVE-2026-7465?
No fix has been published for CVE-2026-7465 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-7465 being exploited?
There is no known exploitation of CVE-2026-7465 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Sources
Also known as GHSA-m3v7-28jh-gr9j.