CVE-2007-1631: PHP remote file inclusion vulnerability in signup.php in CLBOX 1.01 allows remote attackers to execute arbitra

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HIGH 10.0DOWNGRADE

CVE-2007-1631 is a high-severity flaw (CVSS 10.0) affecting clbox. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in signup.php in CLBOX 1.01 allows remote attackers to execute arbitrary PHP code via a URL in the header parameter. NOTE: this issue has been disputed by a reliable third party, stating that header is defined through an include file before use

Why this priority

Critical severity

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Published	2007-03-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: clbox

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

Am I affected?

Timeline

2007-03-23 21:19 UTCPublished CVE record published
2026-06-16 22:37 UTCUpdated Record last modified

clbox clbox DOWNGRADE

Affected: 1.01

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.01

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.01 (Debian / Ubuntu)

apt-cache madison clbox sudo apt install clbox=<VERSION_BEFORE_1.01> sudo apt-mark hold clbox

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

dnf --showduplicates list clbox sudo dnf downgrade clbox-<VERSION_BEFORE_1.01> sudo dnf versionlock add clbox

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-2007-1631?

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

Is CVE-2007-1631 being exploited?

CVE-2007-1631 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-2007-1631 affect?

CVE-2007-1631 affects clbox. Severity is high (CVSS 10.0). PHP remote file inclusion vulnerability in signup.php in CLBOX 1.01 allows remote attackers to execute arbitrary PHP code via a URL in the header parameter. NOTE: this issue has been disputed by a reliable third party, stating that header

How urgent is CVE-2007-1631?

Priority 56/100. Critical severity

Software pages

PHP vulnerabilities

References

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