CVE-2026-85679 (GCVE-0-2026-85679)

Vulnerability from cvelistv5 – Published: 2026-10-01 05:30 – Updated: 2026-10-01 05:30
VLAI
Title
Extendify <= 3.1.6 - Unauthenticated Stored Cross-Site Scripting via 'styles.blocks' Block Type Key
Summary
The Extendify plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'styles.blocks' Block Type Key in all versions up to, and including, 3.1.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is possible because registerIncoming() is hooked on rest_request_before_callbacks and runs before WordPress evaluates the route's permission_callback, meaning any unauthenticated POST, PUT, or PATCH request to a /wp/v2/global-styles route can trigger the vulnerable code path.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version CPE status
extendify Extendify Affected: 0 , ≤ 3.1.6 (semver)
guessed Create a notification for this product.
Credits
Jack Taylor
Show details on NVD website
To clipboard 

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        },
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          "url": "https://plugins.trac.wordpress.org/browser/extendify/tags/3.1.6/app/Shared/Services/BlockStyleVariations.php#L62"
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          "url": "https://plugins.trac.wordpress.org/browser/extendify/tags/3.1.6/bootstrap.php#L112"
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          "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026new=3688833%40extendify%2Ftags%2F3.2.0\u0026old=3669317%40extendify%2Ftags%2F3.1.6"
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          "time": "2026-09-30T16:46:01.000Z",
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    }
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}



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