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    4 vulnerabilities found for Nexa Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE by wpdive

    CVE-2026-6394 (GCVE-0-2026-6394)

    Vulnerability from nvd – Published: 2026-05-20 01:25 – Updated: 2026-05-20 13:52
    VLAI
    Title
    Nexa Blocks <= 1.1.1 - Unauthenticated Blind Server-Side Request Forgery via 'demo_json_file' Parameter
    Summary
    The Nexa Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE plugin for WordPress is vulnerable to Server-Side Request Forgery (SSRF) in versions up to and including 1.1.1. This is due to the import_demo() function accepting a user-supplied URL in the demo_json_file POST parameter and passing it directly to wp_remote_get() without any URL validation or restriction against internal or private network destinations. The nexa_blocks_nonce required for the AJAX action is publicly exposed in the HTML source of any frontend page where the plugin is active via wp_localize_script on the enqueue_block_assets hook, effectively making the nonce available to all visitors and bypassing any intended authentication barrier. This makes it possible for unauthenticated attackers to make server-side HTTP requests to arbitrary internal or external destinations, potentially exposing internal services, cloud metadata endpoints such as the AWS instance metadata service, localhost services, and other resources not intended to be publicly accessible. A secondary SSRF vector also exists whereby image URLs extracted from the attacker-controlled JSON response are subsequently fetched via a second wp_remote_get() call, allowing chained exploitation through a crafted JSON payload.
    Severity
    5.4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Credits
    Patryk Siewert
    Show details on NVD website
    To clipboard 

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        "title": "CISA ADP Vulnrichment"
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    CVE-2025-8624 (GCVE-0-2025-8624)

    Vulnerability from nvd – Published: 2025-09-30 03:35 – Updated: 2026-04-08 17:11
    VLAI
    Title
    Nexa Blocks <= 1.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Google Maps Widget
    Summary
    The Nexa Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Google Maps widget in all versions up to, and including, 1.1.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
    Severity
    6.4 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    Assigner
    References
    Impacted products
    Credits
    D.Sim
    Show details on NVD website
    To clipboard 

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    CVE-2026-6394 (GCVE-0-2026-6394)

    Vulnerability from cvelistv5 – Published: 2026-05-20 01:25 – Updated: 2026-05-20 13:52
    VLAI
    Title
    Nexa Blocks <= 1.1.1 - Unauthenticated Blind Server-Side Request Forgery via 'demo_json_file' Parameter
    Summary
    The Nexa Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE plugin for WordPress is vulnerable to Server-Side Request Forgery (SSRF) in versions up to and including 1.1.1. This is due to the import_demo() function accepting a user-supplied URL in the demo_json_file POST parameter and passing it directly to wp_remote_get() without any URL validation or restriction against internal or private network destinations. The nexa_blocks_nonce required for the AJAX action is publicly exposed in the HTML source of any frontend page where the plugin is active via wp_localize_script on the enqueue_block_assets hook, effectively making the nonce available to all visitors and bypassing any intended authentication barrier. This makes it possible for unauthenticated attackers to make server-side HTTP requests to arbitrary internal or external destinations, potentially exposing internal services, cloud metadata endpoints such as the AWS instance metadata service, localhost services, and other resources not intended to be publicly accessible. A secondary SSRF vector also exists whereby image URLs extracted from the attacker-controlled JSON response are subsequently fetched via a second wp_remote_get() call, allowing chained exploitation through a crafted JSON payload.
    Severity
    5.4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Credits
    Patryk Siewert
    Show details on NVD website
    To clipboard 

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    CVE-2025-8624 (GCVE-0-2025-8624)

    Vulnerability from cvelistv5 – Published: 2025-09-30 03:35 – Updated: 2026-04-08 17:11
    VLAI
    Title
    Nexa Blocks <= 1.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Google Maps Widget
    Summary
    The Nexa Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Google Maps widget in all versions up to, and including, 1.1.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
    Severity
    6.4 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    Assigner
    References
    Impacted products
    Credits
    D.Sim
    Show details on NVD website
    To clipboard 

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  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2025-8624",
    "datePublished": "2025-09-30T03:35:29.346Z",
    "dateReserved": "2025-08-05T21:21:26.123Z",
    "dateUpdated": "2026-04-08T17:11:52.741Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}