CVE-2004-2278: Unknown cross-site scripting (XSS) vulnerability in the web GUI in vHost before 3.10r1 has unknown impact and

Routine

MEDIUM 4.3DOWNGRADE

CVE-2004-2278 is a medium-severity flaw (CVSS 4.3) affecting vhost. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unknown cross-site scripting (XSS) vulnerability in the web GUI in vHost before 3.10r1 has unknown impact and attack vectors.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: chaogic systems

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

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:09 UTCUpdated Record last modified

chaogic systems vhost DOWNGRADE

Affected: 3.00r1 · 3.00r2 · 3.00r3 · 3.00r4 · 3.00r5 · 3.00r6 · 3.01r1 · 3.02r1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.00r1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.00r1 (Debian / Ubuntu)

apt-cache madison vhost sudo apt install vhost=<VERSION_BEFORE_3.00r1> sudo apt-mark hold vhost

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

dnf --showduplicates list vhost sudo dnf downgrade vhost-<VERSION_BEFORE_3.00r1> sudo dnf versionlock add vhost

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-2004-2278?

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

Is CVE-2004-2278 being exploited?

CVE-2004-2278 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-2004-2278 affect?

CVE-2004-2278 affects vhost. Severity is medium (CVSS 4.3). Unknown cross-site scripting (XSS) vulnerability in the web GUI in vHost before 3.10r1 has unknown impact and attack vectors.

How urgent is CVE-2004-2278?

Priority 32/100. No elevated risk signals yet.

References

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