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    2 vulnerabilities found for AI Agent by SiteGround by siteground

    CVE-2026-17153 (GCVE-0-2026-17153)

    Vulnerability from nvd – Published: 2026-08-20 05:30 – Updated: 2026-08-20 15:26
    VLAI
    Title
    AI Agent by SiteGround <= 1.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary Media Upload via /generate-content REST Endpoint
    Summary
    The AI Agent by SiteGround plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.2.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to upload images to the WordPress media library, bypassing the upload_files capability restriction that Contributors are normally subject to, as authenticated attackers with Contributor-level access or above can satisfy the endpoint's nonce and permission checks. The sg_ai_studio_gutenberg_nonce required by the endpoint is emitted to any user with block editor access — including Contributors — making the absent upload_files check the sole barrier to exploitation.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-20 15:04 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    siteground AI Agent by SiteGround Affected: 0 , ≤ 1.2.7 (semver)
    		Create a notification for this product.
    Credits
    Wordfence PRISM
    Show details on NVD website
    To clipboard 

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    CVE-2026-17153 (GCVE-0-2026-17153)

    Vulnerability from cvelistv5 – Published: 2026-08-20 05:30 – Updated: 2026-08-20 15:26
    VLAI
    Title
    AI Agent by SiteGround <= 1.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary Media Upload via /generate-content REST Endpoint
    Summary
    The AI Agent by SiteGround plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.2.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to upload images to the WordPress media library, bypassing the upload_files capability restriction that Contributors are normally subject to, as authenticated attackers with Contributor-level access or above can satisfy the endpoint's nonce and permission checks. The sg_ai_studio_gutenberg_nonce required by the endpoint is emitted to any user with block editor access — including Contributors — making the absent upload_files check the sole barrier to exploitation.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-20 15:04 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    siteground AI Agent by SiteGround Affected: 0 , ≤ 1.2.7 (semver)
    		Create a notification for this product.
    Credits
    Wordfence PRISM
    Show details on NVD website
    To clipboard 

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