# 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.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 May 2026
- **Updated:** 1 Jun 2026
- **Also known as:** GHSA-m3v7-28jh-gr9j

## 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 (Improper Privilege Management)

## 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.

## 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:

- https://github.com/rootdirective-sec/CVE-2026-7465-Lab (github_poc): https://github.com/rootdirective-sec/CVE-2026-7465-Lab
-  CVE-2026-7465 Spectra Gutenberg Blocks Authenticated RCE Exploit (github_poc): https://github.com/izxci/-CVE-2026-7465

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-7465 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-7465 in the wild and no public exploit code.

Affected product: brainstormforce Spectra Gutenberg Blocks – Website Builder for the Block Editor. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-7465/ (Markdown: https://insights.sbomify.com/CVE-2026-7465/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-7465
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-7465
- OSV: https://osv.dev/vulnerability/CVE-2026-7465

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-7465/
Summaries are generated and may contain mistakes; the official description above is the record.