ChurchCRM has Reflected Cross-Site Scripting (XSS) via unsanitized request parameter names and values
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
ChurchCRM is an open-source church management system. Prior to version 7.4.0, Cross-Site Scripting (XSS) vulnerabilities were identified due to insufficient output encoding of user-controlled request parameter names and parameter values. The application reflects attacker-controlled input into JavaScript string contexts and HTML attribute contexts without proper sanitization or contextual output encoding. Affected endpoints observed during testing: /FamilyCustomFieldsEditor.php, /PaddleNumList.php and /admin/system/church-info. Potential consequences include session-token theft, account takeover, unauthorized actions on behalf of authenticated users, exposure of sensitive church member information, credential harvesting, phishing, and privilege escalation when administrators are targeted. This issue has been resolved in version 7.4.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA CRM (ChurchCRM) Fixed in 7.4.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-58411
More ChurchCRM vulnerabilities
- TI-2026-30599 ChurchCRM: Incomplete fix for CVE-2026-39337: Unauthenticated RCE in Setup Wizard via unsanitized DB_PASSWORD CVSS 3.1CRITICAL 10.0
- TI-2026-28325 ChurchCRM Affected by Unauthenticated RCE in Install Wizard CVSS 3.1CRITICAL 10.0
- TI-2025-38761 ChurchCRM has unauthenticated RCE in its Install Wizard CVSS 3.1CRITICAL 10.0
- TI-2024-35802 EventAttendance.php in ChurchCRM 5.7.0 is vulnerable to SQL injection. CVSS 3.1CRITICAL 9.8
- TI-2024-16997 ChurchCRM 5.5.0 /EventEditor.php is vulnerable to Blind SQL Injection (Time-based) via the EventCount POST parameter. CVSS 3.1CRITICAL 9.8
- TI-2025-41969 ChurchCRM vulnerable to time-based blind SQL Injection in ConfirmReportEmail.php CVSS 4.0CRITICAL 9.3
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences