EUVD-2026-19772Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Lifecycle Timeline
7DescriptionGitHub Advisory
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.
AnalysisAI
Stored XSS in ChurchCRM Note Editor enables authenticated users to execute arbitrary JavaScript in victims' browsers, leading to session hijacking and privilege escalation against administrators managing sensitive church member data. Affects ChurchCRM versions prior to 6.5.3. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires authenticated ChurchCRM user account with note-adding permissions on versions prior to 6.5.3. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is moderate-to-high for ChurchCRM deployments. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with low-level authenticated access (such as a volunteer account with note-adding permissions) crafts a malicious note containing JavaScript payload designed to steal session cookies or perform administrative actions. When a ChurchCRM administrator opens the Notes section to review or manage entries, the stored JavaScript executes in their browser context with full administrative privileges, silently transmitting their session token to the attacker's server. … |
| Remediation | Upgrade ChurchCRM to version 6.5.3 or later, which contains vendor-released fixes for the stored XSS vulnerability in the Note Editor. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all ChurchCRM deployments and confirm current version status. …
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