CVE-2022-47740: Seltmann GmbH Content Management System 6 is vulnerable to SQL Injection via /index.php.

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-47740 is a critical-severity flaw (CVSS 9.8) affecting content management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Seltmann GmbH Content Management System 6 is vulnerable to SQL Injection via /index.php.

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	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-89
Published	2023-01-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: seltmann-webdesign

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

Am I affected?

Timeline

2023-01-19 18:15 UTCPublished CVE record published
2026-06-17 05:14 UTCUpdated Record last modified

seltmann-webdesign content management system DOWNGRADE

Affected: 6.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 6.0 (Debian / Ubuntu)

apt-cache madison content-management-system sudo apt install content-management-system=<VERSION_BEFORE_6.0> sudo apt-mark hold content-management-system

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

dnf --showduplicates list content-management-system sudo dnf downgrade content-management-system-<VERSION_BEFORE_6.0> sudo dnf versionlock add content-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-2022-47740?

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

Is CVE-2022-47740 being exploited?

CVE-2022-47740 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-2022-47740 affect?

CVE-2022-47740 affects content management system. Severity is critical (CVSS 9.8). Seltmann GmbH Content Management System 6 is vulnerable to SQL Injection via /index.php.

How urgent is CVE-2022-47740?

Priority 58/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

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References

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