CVE-2006-1955: PHP remote file inclusion vulnerability in authent.php4 in Nicolas Fischer (aka NFec) RechnungsZentrale V2 1.1

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MEDIUM 5.0DOWNGRADE

CVE-2006-1955 is a medium-severity flaw (CVSS 5.0) affecting rechnungszentrale. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in authent.php4 in Nicolas Fischer (aka NFec) RechnungsZentrale V2 1.1.3, and possibly earlier versions, allows remote attackers to execute arbitrary PHP code via a URL in the rootpath parameter.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Published	2006-04-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: nfec.de

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-04-21 10:02 UTCPublished CVE record published
2026-06-16 22:24 UTCUpdated Record last modified

nfec.de rechnungszentrale DOWNGRADE

Affected: v2_1.1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before v2_1.1.3

1. Check installed version

apt-cache policy rechnungszentrale || rpm -q rechnungszentrale || rechnungszentrale --version

2. No fixed release: DOWNGRADE to a release before v2_1.1.3 (Debian / Ubuntu)

apt-cache madison rechnungszentrale sudo apt install rechnungszentrale=<VERSION_BEFORE_v2_1.1.3> sudo apt-mark hold rechnungszentrale

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

dnf --showduplicates list rechnungszentrale sudo dnf downgrade rechnungszentrale-<VERSION_BEFORE_v2_1.1.3> sudo dnf versionlock add rechnungszentrale

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-2006-1955?

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

Is CVE-2006-1955 being exploited?

CVE-2006-1955 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-2006-1955 affect?

CVE-2006-1955 affects rechnungszentrale. Severity is medium (CVSS 5.0). PHP remote file inclusion vulnerability in authent.php4 in Nicolas Fischer (aka NFec) RechnungsZentrale V2 1.1.3, and possibly earlier versions, allows remote attackers to execute arbitrary PHP code via a URL in the rootpath parameter.

How urgent is CVE-2006-1955?

Priority 42/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-1954 MEDIUM 5.0 DOWNGRADE SQL injection vulnerability in authent.php4 in Nicolas Fischer (aka NFec) RechnungsZentrale V2 1.1.3, and poss

References

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