CVE-2005-4496: Cross-site scripting (XSS) vulnerability in search in SyntaxCMS 1.2.1 and earlier allows remote attackers to i

Q: How do I fix CVE-2005-4496?

syntaxcms: upgrade to newer than 1.2.1. Exact commands for each OS are on this page.

Q: Is CVE-2005-4496 being exploited?

CVE-2005-4496 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-2005-4496 affect?

CVE-2005-4496 affects syntaxcms. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in search in SyntaxCMS 1.2.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the search_query parameter.

Q: How urgent is CVE-2005-4496?

Priority 40/100. Public exploit reference

This month

MEDIUM 4.3UPGRADE

CVE-2005-4496 is a medium-severity flaw (CVSS 4.3) affecting syntaxcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in search in SyntaxCMS 1.2.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the search_query parameter.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Published	2005-12-22
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: forum one

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

Am I affected?

Timeline

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

forum one syntaxcms UPGRADE

Affected: <= 1.2.1

Fixed in: newer than 1.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.2.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade syntaxcms

Note

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

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: SyntaxCMS - Search Query 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-2005-4496?

syntaxcms: upgrade to newer than 1.2.1. Exact commands for each OS are on this page.

Is CVE-2005-4496 being exploited?

CVE-2005-4496 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-2005-4496 affect?

CVE-2005-4496 affects syntaxcms. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in search in SyntaxCMS 1.2.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the search_query parameter.

How urgent is CVE-2005-4496?

Priority 40/100. Public exploit reference

Related CVEs

CVE-2006-5105 HIGH 7.5 DOWNGRADE Multiple PHP remote file inclusion vulnerabilities in SyntaxCMS 1.1.1 through 1.3 allow remote attackers to ex
CVE-2006-5055 HIGH 7.5 UPGRADE PHP remote file inclusion vulnerability in admin/testing/tests/0004_init_urls.php in syntaxCMS 1.1.1 through 1

References

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