CVE-2007-6728: Cross-site scripting (XSS) vulnerability in XMB 1.5 allows remote attackers to inject arbitrary web script or

Routine

MEDIUM 4.3DOWNGRADE

CVE-2007-6728 is a medium-severity flaw (CVSS 4.3) affecting xmb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in XMB 1.5 allows remote attackers to inject arbitrary web script or HTML via the MSN field during user registration.

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	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-79
Published	2009-07-05
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: xmb forum

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

Am I affected?

Timeline

2009-07-05 16:30 UTCPublished CVE record published
2026-06-16 22:48 UTCUpdated Record last modified

xmb forum xmb DOWNGRADE

Affected: 1.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.5 (Debian / Ubuntu)

apt-cache madison xmb sudo apt install xmb=<VERSION_BEFORE_1.5> sudo apt-mark hold xmb

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

dnf --showduplicates list xmb sudo dnf downgrade xmb-<VERSION_BEFORE_1.5> sudo dnf versionlock add xmb

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-2007-6728?

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

Is CVE-2007-6728 being exploited?

CVE-2007-6728 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-2007-6728 affect?

CVE-2007-6728 affects xmb. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in XMB 1.5 allows remote attackers to inject arbitrary web script or HTML via the MSN field during user registration.

How urgent is CVE-2007-6728?

Priority 38/100. Public exploit reference

Related CVEs

CVE-2021-29399 MEDIUM 6.1 UPGRADE XMB is vulnerable to cross-site scripting (XSS) due to inadequate filtering of BBCode input

References

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