CVE-2026-58411
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedChurchCRM 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceChurchCRM versions prior to 7.4.0 contain Reflected XSS vulnerabilities in multiple endpoints (/FamilyCustomFieldsEditor.php, /PaddleNumList.php, /admin/system/church-info) where user-controlled request parameter names and values are reflected into JavaScript string and HTML attribute contexts without proper output encoding or contextual sanitization, allowing injection of arbitrary script execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- Authentication
- X
- User interaction
- A
- Scope
- X
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify installed ChurchCRM versionLocate the version file or check the admin interface (typically System Dashboard or /public/version.php) to determine the running versionAffected if The installed version is any version prior to 7.4.0
-
Verify affected endpoints existCheck if the following PHP files exist in the web root: FamilyCustomFieldsEditor.php, PaddleNumList.php, and the file handling /admin/system/church-infoAffected if Any of these endpoint files are present and accessible on the server
-
Test parameter reflection in FamilyCustomFieldsEditor.phpSubmit a crafted request with a test parameter (e.g., ?test=<script>alert(1)</script>) and inspect if the parameter name or value appears unencoded in the page response HTML or JavaScriptAffected if User-supplied parameter names or values are reflected into the response without HTML encoding or JavaScript escaping
-
Test parameter reflection in PaddleNumList.phpSubmit a crafted request with a test parameter and inspect the response for unencoded output in HTML attributes or JavaScript string contextsAffected if User-supplied parameter names or values are reflected into the response without HTML encoding or JavaScript escaping
-
Test parameter reflection in admin/system/church-infoSubmit crafted parameters to the church-info endpoint and examine if input is reflected without contextual encoding in HTML or JavaScript contextsAffected if User-supplied parameter names or values are reflected into the response without HTML encoding or JavaScript escaping
The environment is affected if ChurchCRM version is below 7.4.0 AND any of the three vulnerable endpoints reflect user-controlled input without proper output encoding in HTML or JavaScript contexts.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade to ChurchCRM version 7.4.0 or later, which implements proper output encoding; alternatively, apply contextual output encoding to all user-supplied input reflected into HTML/JavaScript contexts at the identified endpoints.
ChurchCRM 7.4.0
- 1. Back up your current ChurchCRM installation and database
- 2. Download ChurchCRM version 7.4.0 or later from the official repository (github.com/ChurchCRM/CRM)
- 3. Extract the new version to your web server directory
- 4. Run any database migration scripts if included in the release
- 5. Verify the upgrade was successful by accessing the application
- 6. Test the previously vulnerable endpoints (/FamilyCustomFieldsEditor.php, /PaddleNumList.php, /admin/system/church-info) to confirm the XSS vulnerability is resolved
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,568.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-58411 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-58411 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data