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CVE-2026-4658 Gutenberg Essential Blocks <= 6.0.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attributes

🗓️ 02 May 2026 04:27:44Reported by WordfenceType 
cvelist
 cvelist
🔗 www.cve.org👁 32 Views

CVE-2026-4658 stored XSS in the Add to Cart block up to version 6.0.4 via class attributes exploitable by authenticated contributors.

Related
Affected
Refs
[
  {
    "vendor": "wpdevteam",
    "product": "Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "lessThanOrEqual": "6.0.4",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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