CVE-2005-4235: Cross-site scripting (XSS) vulnerability in knowledgebase.php in WHMCompleteSolution 2.1 and earlier allows re

Q: How do I fix CVE-2005-4235?

whmcompletesolution: upgrade to newer than 2.1. Exact commands for each OS are on this page.

Q: Is CVE-2005-4235 being exploited?

CVE-2005-4235 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-2005-4235 affect?

CVE-2005-4235 affects whmcompletesolution. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in knowledgebase.php in WHMCompleteSolution 2.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the search parameters.

Q: How urgent is CVE-2005-4235?

Priority 32/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2005-4235 is a medium-severity flaw (CVSS 4.3) affecting whmcompletesolution. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in knowledgebase.php in WHMCompleteSolution 2.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the search parameters.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Published	2005-12-14
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: whmcompletesolution

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

Am I affected?

Timeline

2005-12-14 11:03 UTCPublished CVE record published
2026-06-16 22:18 UTCUpdated Record last modified

whmcompletesolution whmcompletesolution UPGRADE

Affected: <= 2.1

Fixed in: newer than 2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade whmcompletesolution

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade whmcompletesolution

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2005-4235?

whmcompletesolution: upgrade to newer than 2.1. Exact commands for each OS are on this page.

Is CVE-2005-4235 being exploited?

CVE-2005-4235 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-2005-4235 affect?

CVE-2005-4235 affects whmcompletesolution. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in knowledgebase.php in WHMCompleteSolution 2.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the search parameters.

How urgent is CVE-2005-4235?

Priority 32/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

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References

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