CVE-2007-6489: Multiple cross-site scripting (XSS) vulnerabilities in Falcon Series One CMS 1.4.3 allow remote attackers to i

This month

HIGH 7.5DOWNGRADE

CVE-2007-6489 is a high-severity flaw (CVSS 7.5) affecting series one cms. 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 Falcon Series One CMS 1.4.3 allow remote attackers to inject arbitrary web script or HTML via the (1) gb_mail, (2) gb_name, and (3) gb_text parameters in a guestbook action to index.php, and unspecified other vectors.

Why this priority

High severity
EPSS top 6%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	6.8% (top 6%)
CISA exploited list	No
Published	2007-12-20
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: falcon

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

Am I affected?

Timeline

2007-12-20 20:46 UTCPublished CVE record published
2026-06-16 22:48 UTCUpdated Record last modified

falcon series one cms DOWNGRADE

Affected: 1.4.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.3

1. Check installed version

apt-cache policy series-one-cms || rpm -q series-one-cms || series-one-cms --version

2. No fixed release: DOWNGRADE to a release before 1.4.3 (Debian / Ubuntu)

apt-cache madison series-one-cms sudo apt install series-one-cms=<VERSION_BEFORE_1.4.3> sudo apt-mark hold series-one-cms

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

dnf --showduplicates list series-one-cms sudo dnf downgrade series-one-cms-<VERSION_BEFORE_1.4.3> sudo dnf versionlock add series-one-cms

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: falcon CMS 1.4.3 - Remote File Inclusion / Cross-Site Scripting

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-2007-6489?

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

Is CVE-2007-6489 being exploited?

CVE-2007-6489 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-2007-6489 affect?

CVE-2007-6489 affects series one cms. Severity is high (CVSS 7.5). Multiple cross-site scripting (XSS) vulnerabilities in Falcon Series One CMS 1.4.3 allow remote attackers to inject arbitrary web script or HTML via the (1) gb_mail, (2) gb_name, and (3) gb_text parameters in a guestbook action to index.php

How urgent is CVE-2007-6489?

Priority 55/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2007-6490 MEDIUM 4.3 DOWNGRADE Cross-site request forgery (CSRF) vulnerability in Falcon Series One CMS 1.4.3 allows remote attackers to chan
CVE-2007-6488 MEDIUM 6.8 DOWNGRADE Multiple PHP remote file inclusion vulnerabilities in Falcon Series One CMS 1.4.3 allow remote attackers to ex

References

← Back to latest CVEs