Fediverse Embeds: Public-nonce SSRF via ftf_get_site_info AJAX action_CVE-2026-46698

{
    "lastseen": "",
    "description": "Fediverse Embeds embeds fediverse posts on WordPress sites. Prior to version 1.5.9, Fediverse Embeds registered the unauthenticated AJAX action wp_ajax_nopriv_ftf_get_site_info (includes/Site_Info.php) that verified a nonce ftf-fediverse-embeds-nonce and then called file_get_html($site_url) on the attacker-supplied URL. The same nonce was enqueued onto every public page containing a fediverse embed (via includes/Enqueue_Assets.php lines 41-46 + includes/Helpers.php lines 64-83), so the nonce gate was not an authentication boundary; any visitor of a public post with an embed could grab it and reuse it. This issue has been patched in version 1.5.9.",
    "published": "2026-06-11T17:15:52.767Z",
    "modified": "2026-06-11T17:15:52.767Z",
    "type": "cve",
    "title": "Fediverse Embeds: Public-nonce SSRF via ftf_get_site_info AJAX action",
    "source": "GitHub_M",
    "references": "https://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/security/advisories/GHSA-cr42-rgq6-whjh\nhttps://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/commit/93821405790ccc7a80528e91b34b624606b54969",
    "id": "CVE-2026-46698",
    "bulletinFamily": "",
    "cwe": [
        "CWE-918"
    ],
    "cvelist": null,
    "sourceData": "stefanbohacek fediverse-embeds-wordpress-plugin < 1.5.9",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "fediverse-embeds-wordpress-plugin",
    "version": "< 1.5.9",
    "vendor": "stefanbohacek",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}