CVE-2026-58411 ChurchCRM has Reflected Cross-Site Scripting (XSS) via unsanitized request parameter names and values
Attackers can execute arbitrary scripts in victim browsers via unsanitized request parameters, leading to session theft and account takeover in ChurchCRM.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-58411?
CVE-2026-58411 is a high-severity cross-site scripting vulnerability in ChurchCRM CRM, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-58411?
How do I fix CVE-2026-58411?
No fix has been published for CVE-2026-58411 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-58411 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-58411 exists.
Sources
Also known as GHSA-p6j6-vrpg-4pp8.