CVE-2005-4047: Cross-site scripting (XSS) vulnerability in kb.asp in IISWorks ASPKnowledgeBase 2.0 allows remote attackers to

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MEDIUM 4.3DOWNGRADE

CVE-2005-4047 is a medium-severity flaw (CVSS 4.3) affecting aspknowledgebase. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in kb.asp in IISWorks ASPKnowledgeBase 2.0 allows remote attackers to inject arbitrary web script or HTML via the a 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	1.8% (top 22%)
CISA exploited list	No
Published	2005-12-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: iisworks

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

Am I affected?

Timeline

2005-12-07 11:03 UTCPublished CVE record published
2026-06-16 22:18 UTCUpdated Record last modified

iisworks aspknowledgebase DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison aspknowledgebase sudo apt install aspknowledgebase=<VERSION_BEFORE_2.0> sudo apt-mark hold aspknowledgebase

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

dnf --showduplicates list aspknowledgebase sudo dnf downgrade aspknowledgebase-<VERSION_BEFORE_2.0> sudo dnf versionlock add aspknowledgebase

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: IISWorks ASPKnowledgeBase 2.0 - 'KB.asp' 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-2005-4047?

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

Is CVE-2005-4047 being exploited?

CVE-2005-4047 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-2005-4047 affect?

CVE-2005-4047 affects aspknowledgebase. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in kb.asp in IISWorks ASPKnowledgeBase 2.0 allows remote attackers to inject arbitrary web script or HTML via the a parameter.

How urgent is CVE-2005-4047?

Priority 40/100. Public exploit reference

Related CVEs

CVE-2005-4658 MEDIUM 6.8 MITIGATE Multiple cross-site scripting (XSS) vulnerabilities in ASP-Programmers.com ASPKnowledgebase allow remote attac
CVE-2005-3596 HIGH 7.5 MITIGATE SQL injection vulnerability in ASPKnowledgebase allows remote attackers to execute arbitrary SQL commands and

References

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