CVE-2021-41661: Church Management System version 1.0 is affected by a SQL anjection vulnerability through creating a user with

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-41661 is a critical-severity flaw (CVSS 9.8) affecting church management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Church Management System version 1.0 is affected by a SQL anjection vulnerability through creating a user with a PHP file as an avatar image, which is accessible through the /uploads directory. This can lead to RCE on the web server by uploading a PHP webshell.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-06-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: church management system project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-06-13 23:15 UTCPublished CVE record published
2026-06-17 04:08 UTCUpdated Record last modified

church management system project church management system DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy church-management-system || rpm -q church-management-system || church-management-system --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison church-management-system sudo apt install church-management-system=<VERSION_BEFORE_1.0> sudo apt-mark hold church-management-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list church-management-system sudo dnf downgrade church-management-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add church-management-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-41661?

church management system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-41661 being exploited?

CVE-2021-41661 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-41661 affect?

CVE-2021-41661 affects church management system. Severity is critical (CVSS 9.8). Church Management System version 1.0 is affected by a SQL anjection vulnerability through creating a user with a PHP file as an avatar image, which is accessible through the /uploads directory. This can lead to RCE on the web server by uplo

How urgent is CVE-2021-41661?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2024-3542 LOW 3.5 DOWNGRADE A vulnerability classified as problematic was found in Campcodes Church Management System 1.0
CVE-2024-3541 LOW 3.5 DOWNGRADE A vulnerability classified as problematic has been found in Campcodes Church Management System 1.0
CVE-2024-3540 MEDIUM 6.3 DOWNGRADE A vulnerability was found in Campcodes Church Management System 1.0
CVE-2024-3539 MEDIUM 6.3 DOWNGRADE A vulnerability was found in Campcodes Church Management System 1.0
CVE-2024-3538 MEDIUM 6.3 DOWNGRADE A vulnerability was found in Campcodes Church Management System 1.0

References

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