CVE-2025-66395Public exploitNetwork attack vector

Authenticated SQL injection via untyped event filter

Published Dec 17, 2025 · Updated Dec 17, 2025

SQL injection in ChurchCRM before 6.5.3 allows remote authenticated users to read, modify, or delete database data via WhichType. In src/ListEvents.php, InputUtils::legacyFilterInput accepts the POST value without integer enforcement, and the result is concatenated into several SQL queries. Any authenticated account can reach the event filter; a time-delay payload demonstrates arbitrary database-query execution without user interaction.

CVSS severity8.8
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in ChurchCRM before 6.5.3 allows remote authenticated users to read, modify, or delete database data via WhichType. In src/ListEvents.php, InputUtils::legacyFilterInput accepts the POST value without integer enforcement, and the result is concatenated into several SQL queries. Any authenticated account can reach the event filter; a time-delay payload demonstrates arbitrary database-query execution without user interaction.

The record

CVE
CVE-2025-66395
Published
Dec 17, 2025
Updated
Dec 17, 2025
Vendor
ChurchCRM
Product
ChurchCRM
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 6.5.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ChurchCRM · ChurchCRMversion=< 6.5.3

Published CVSS scores

8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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