CVE-2025-62521Public exploitNetwork attack vector

Unauthenticated code execution via setup template injection

Published Dec 17, 2025 · Updated Dec 17, 2025

Code injection in ChurchCRM before 5.21.0 allows remote attackers to execute commands through the unauthenticated setup wizard. setup/routes/setup.php inserts unvalidated form values into a PHP template and writes the result to Include/Config.php, which later page loads execute. Exposure is limited to installations with the setup wizard reachable, but successful injection runs commands as the web-server account.

CVSS severity10.0
Critical
EPSS probability4.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in ChurchCRM before 5.21.0 allows remote attackers to execute commands through the unauthenticated setup wizard. setup/routes/setup.php inserts unvalidated form values into a PHP template and writes the result to Include/Config.php, which later page loads execute. Exposure is limited to installations with the setup wizard reachable, but successful injection runs commands as the web-server account.

The record

CVE
CVE-2025-62521
Published
Dec 17, 2025
Updated
Dec 17, 2025
Vendor
ChurchCRM
Product
ChurchCRM
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

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=< 5.21.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ChurchCRM · ChurchCRMversion=< 5.21.0

Published CVSS scores

10.0GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code 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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