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TI-2026-27678 Aliases CVE-2026-35574

ChurchCRM has a Stored XSS in Person Profile - Add a Note

Priority HIGH 73CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0032 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed CRM (ChurchCRM): 6.5.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ChurchCRMCRMbefore 6.5.36.5.3Patch availableCNA
  • CRM VendorChurchCRM Affected before 6.5.3 Fixed in 6.5.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:churchcrm:churchcrm:*:*:*:*:*:*:*:*before 6.5.3VulnerableChurchCRM
  • cpe:2.3:a:churchcrm:churchcrm:*:*:*:*:*:*:*:* Versions before 6.5.3 Vulnerable ·ChurchCRM

Remediation

  • Fix · CNA CRM (ChurchCRM) Fixed in 6.5.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35574

References

Exploit 1

  • 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
  • TI-2025-00963 SQL Injection in ChurchCRM CurrentFundraiser Parameter via BatchWinnerEntry.php CVSS 4.0CRITICAL 9.3
See all 109 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences