CVE-2006-5299: Multiple cross-site scripting (XSS) vulnerabilities in index.php in Gcontact 0.6.5 allow remote attackers to i

Routine

MEDIUM 4.3DOWNGRADE

CVE-2006-5299 is a medium-severity flaw (CVSS 4.3) affecting gcontact. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in index.php in Gcontact 0.6.5 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Published	2006-10-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: gcontact

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

Am I affected?

Timeline

2006-10-17 15:07 UTCPublished CVE record published
2026-06-16 22:30 UTCUpdated Record last modified

gcontact gcontact DOWNGRADE

Affected: 0.6.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.6.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.6.5 (Debian / Ubuntu)

apt-cache madison gcontact sudo apt install gcontact=<VERSION_BEFORE_0.6.5> sudo apt-mark hold gcontact

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

dnf --showduplicates list gcontact sudo dnf downgrade gcontact-<VERSION_BEFORE_0.6.5> sudo dnf versionlock add gcontact

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-2006-5299?

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

Is CVE-2006-5299 being exploited?

CVE-2006-5299 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-2006-5299 affect?

CVE-2006-5299 affects gcontact. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in index.php in Gcontact 0.6.5 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

How urgent is CVE-2006-5299?

Priority 37/100. Public exploit reference

Software pages

PHP vulnerabilities

References

← Back to latest CVEs