CVE-2004-1420: Multiple cross-site scripting (XSS) vulnerabilities in header.php in WHM AutoPilot 2.4.6.5 and earlier allow r

Q: How do I fix CVE-2004-1420?

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

Q: Is CVE-2004-1420 being exploited?

CVE-2004-1420 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2004-1420 affect?

CVE-2004-1420 affects autopilot. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in header.php in WHM AutoPilot 2.4.6.5 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) site_title or (2) http_images parameter.

Q: How urgent is CVE-2004-1420?

Priority 43/100. EPSS top 9%: very likely to be exploited; Public exploit reference

This month

MEDIUM 4.3DOWNGRADE

CVE-2004-1420 is a medium-severity flaw (CVSS 4.3) affecting autopilot. 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 header.php in WHM AutoPilot 2.4.6.5 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) site_title or (2) http_images parameter.

Why this priority

EPSS top 9%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	4.0% (top 9%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: whm

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 22:07 UTCUpdated Record last modified

whm autopilot DOWNGRADE

Affected: 2.4.5 · 2.4.6 · 2.4.6.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.4.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.4.5 (Debian / Ubuntu)

apt-cache madison autopilot sudo apt install autopilot=<VERSION_BEFORE_2.4.5> sudo apt-mark hold autopilot

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

dnf --showduplicates list autopilot sudo dnf downgrade autopilot-<VERSION_BEFORE_2.4.5> sudo dnf versionlock add autopilot

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: WHM.AutoPilot < 2.4.6.5 - Multiple Vulnerabilities

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-2004-1420?

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

Is CVE-2004-1420 being exploited?

CVE-2004-1420 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-2004-1420 affect?

CVE-2004-1420 affects autopilot. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in header.php in WHM AutoPilot 2.4.6.5 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) site_title or (2) http_images parameter.

How urgent is CVE-2004-1420?

Priority 43/100. EPSS top 9%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

← Back to latest CVEs