CVE-2026-39941: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in ChurchCRM CRM
ChurchCRM is an open-source church management system. Prior to 7.1.0, an XSS vulnerability allows attacker-supplied input sent via a the EName and EDesc parameters in EditEventAttendees.php to be rendered in a page without proper output encoding, enabling arbitrary JavaScript execution in victims' browsers. This vulnerability is fixed in 7.1.0.
AI Analysis
Technical Summary
CVE-2026-39941 is a cross-site scripting vulnerability in ChurchCRM CRM versions before 7.1.0. It occurs due to improper neutralization of input during web page generation, specifically in the EditEventAttendees.php file where the EName and EDesc parameters are not properly encoded before being rendered. This flaw enables attackers to inject and execute arbitrary JavaScript code in the context of a victim's browser session. The vulnerability has been addressed and fixed in ChurchCRM version 7.1.0.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary JavaScript in the browsers of users viewing the affected pages, potentially leading to session hijacking, defacement, or other client-side attacks. The vulnerability does not require privileges or user interaction beyond visiting a crafted page. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade ChurchCRM to version 7.1.0 or later, where this XSS vulnerability has been fixed. Since this is a self-hosted application, administrators must apply the update manually. Patch status is confirmed by the vendor's versioning information. No additional mitigations are specifically indicated.
CVE-2026-39941: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in ChurchCRM CRM
Description
ChurchCRM is an open-source church management system. Prior to 7.1.0, an XSS vulnerability allows attacker-supplied input sent via a the EName and EDesc parameters in EditEventAttendees.php to be rendered in a page without proper output encoding, enabling arbitrary JavaScript execution in victims' browsers. This vulnerability is fixed in 7.1.0.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-39941 is a cross-site scripting vulnerability in ChurchCRM CRM versions before 7.1.0. It occurs due to improper neutralization of input during web page generation, specifically in the EditEventAttendees.php file where the EName and EDesc parameters are not properly encoded before being rendered. This flaw enables attackers to inject and execute arbitrary JavaScript code in the context of a victim's browser session. The vulnerability has been addressed and fixed in ChurchCRM version 7.1.0.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary JavaScript in the browsers of users viewing the affected pages, potentially leading to session hijacking, defacement, or other client-side attacks. The vulnerability does not require privileges or user interaction beyond visiting a crafted page. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade ChurchCRM to version 7.1.0 or later, where this XSS vulnerability has been fixed. Since this is a self-hosted application, administrators must apply the update manually. Patch status is confirmed by the vendor's versioning information. No additional mitigations are specifically indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-07T22:40:33.820Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d7ce5e1cc7ad14dae8f927
Added to database: 4/9/2026, 4:05:50 PM
Last enriched: 4/17/2026, 12:26:50 PM
Last updated: 5/24/2026, 7:18:19 PM
Views: 77
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