CVE-2008-6386: Cross-site scripting (XSS) vulnerability in showads.php in Z1Exchange 1.0 allows remote attackers to inject ar

Routine

MEDIUM 4.3DOWNGRADE

CVE-2008-6386 is a medium-severity flaw (CVSS 4.3) affecting z1exchange. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in showads.php in Z1Exchange 1.0 allows remote attackers to inject arbitrary web script or HTML via the id parameter.

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	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-79
Published	2009-03-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: 1scripts

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

Am I affected?

Timeline

2009-03-02 19:30 UTCPublished CVE record published
2026-06-16 23:02 UTCUpdated Record last modified

1scripts z1exchange DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy z1exchange || rpm -q z1exchange || z1exchange --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison z1exchange sudo apt install z1exchange=<VERSION_BEFORE_1.0> sudo apt-mark hold z1exchange

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

dnf --showduplicates list z1exchange sudo dnf downgrade z1exchange-<VERSION_BEFORE_1.0> sudo dnf versionlock add z1exchange

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: Z1Exchange 1.0 - 'id' 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-2008-6386?

z1exchange: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2008-6386 being exploited?

CVE-2008-6386 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-2008-6386 affect?

CVE-2008-6386 affects z1exchange. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in showads.php in Z1Exchange 1.0 allows remote attackers to inject arbitrary web script or HTML via the id parameter.

How urgent is CVE-2008-6386?

Priority 38/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2008-6392 HIGH 7.5 DOWNGRADE SQL injection vulnerability in showads.php in Z1Exchange allows remote attackers to execute arbitrary SQL comm
CVE-2008-6284 HIGH 7.5 DOWNGRADE SQL injection vulnerability in edit.php in Z1Exchange 1.0 allows remote attackers to execute arbitrary SQL com

References

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