{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3481", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-03-03T14:45:44.658Z", "datePublished": "2026-05-22T04:29:01.158Z", "dateUpdated": "2026-05-22T04:29:01.158Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-05-22T04:29:01.158Z"}, "affected": [{"vendor": "burlingtonbytes", "product": "WP Blockade \u2013 Visual Page Builder", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "0.9.14", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The WP Blockade plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'shortcode' parameter in all versions up to and including 0.9.14. This is due to insufficient input sanitization and output escaping in the render_shortcode_preview() function. The function receives user input from $_GET['shortcode'], passes it through stripslashes() without any sanitization, and then outputs it directly via echo do_shortcode($shortcode) on line 393. When the input is not a valid WordPress shortcode (e.g., an HTML tag with JavaScript event handlers), do_shortcode() returns it unchanged, and it is reflected into the page without escaping. The endpoint is registered via admin_post_ (not admin_post_nopriv_), meaning it requires the user to be logged in with at minimum a Subscriber-level account. There is no nonce verification or additional capability check. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute if they can successfully trick a user into performing an action such as clicking a link."}], "title": "WP Blockade <= 0.9.14 - Reflected Cross-Site Scripting via 'shortcode' Parameter", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/66950509-ce2a-42fe-a8b2-2a92a1b573c3?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L393"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L393"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L360"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L360"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM"}}], "credits": [{"lang": "en", "type": "finder", "value": "Youcef Hamdani"}], "timeline": [{"time": "2026-05-21T16:12:17.000Z", "lang": "en", "value": "Disclosed"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The WP Blockade plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'shortcode' parameter in all versions up to and including 0.9.14. This is due to insufficient input sanitization and output escaping in the render_shortcode_preview() function. The function receives user input from $_GET['shortcode'], passes it through stripslashes() without any sanitization, and then outputs it directly via echo do_shortcode($shortcode) on line 393. When the input is not a valid WordPress shortcode (e.g., an HTML tag with JavaScript event handlers), do_shortcode() returns it unchanged, and it is reflected into the page without escaping. The endpoint is registered via admin_post_ (not admin_post_nopriv_), meaning it requires the user to be logged in with at minimum a Subscriber-level account. There is no nonce verification or additional capability check. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute if they can successfully trick a user into performing an action such as clicking a link."}], "id": "CVE-2026-3481", "lastModified": "2026-05-22T05:16:25.640", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Primary"}]}, "published": "2026-05-22T05:16:25.640", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L360"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L393"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L360"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L393"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/66950509-ce2a-42fe-a8b2-2a92a1b573c3?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Primary"}]}

{}

{}