CVE-2006-4035: SQL injection vulnerability in counterchaos.php in CounterChaos 0.48c and earlier allows remote attackers to e

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HIGH 7.5DOWNGRADE

CVE-2006-4035 is a high-severity flaw (CVSS 7.5) affecting counterchaos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in counterchaos.php in CounterChaos 0.48c and earlier allows remote attackers to execute arbitrary SQL commands via the Referer HTTP header.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Published	2006-08-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: counterchaos

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

Am I affected?

Timeline

2006-08-09 22:04 UTCPublished CVE record published
2026-06-16 22:28 UTCUpdated Record last modified

counterchaos counterchaos DOWNGRADE

Affected: 0.48c

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.48c

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.48c (Debian / Ubuntu)

apt-cache madison counterchaos sudo apt install counterchaos=<VERSION_BEFORE_0.48c> sudo apt-mark hold counterchaos

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

dnf --showduplicates list counterchaos sudo dnf downgrade counterchaos-<VERSION_BEFORE_0.48c> sudo dnf versionlock add counterchaos

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-2006-4035?

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

Is CVE-2006-4035 being exploited?

CVE-2006-4035 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-2006-4035 affect?

CVE-2006-4035 affects counterchaos. Severity is high (CVSS 7.5). SQL injection vulnerability in counterchaos.php in CounterChaos 0.48c and earlier allows remote attackers to execute arbitrary SQL commands via the Referer HTTP header.

How urgent is CVE-2006-4035?

Priority 50/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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