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CVE-2006-0800

18
FAUCET Score

CVE-2006-0800 describes a cross-site scripting (XSS) vulnerability in PostNuke 0.761 and earlier versions. This flaw arises from an interpretation conflict where certain web browsers treat a trailing "<" character in HTML tags as a ">", bypassing PostNuke's blacklist protections in functions like pnVarCleanFromInput and pnSecureInput, as well as the htmltext parameter in user.php. The vulnerability has a low CVSS score of 2.6, indicating a network-based attack with high access complexity and a partial impact on integrity, but no impact on confidentiality or availability. Its EPSS score is low, suggesting a low probability of exploitation. While there is no evidence of active exploitation or Metasploit/Nuclei modules, an exploit for PostNuke 0.6x/0.7x NS-Languages Module has been published on ExploitDB. Community discussion and media coverage for this CVE are minimal, consistent with the majority of older vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
0.7CPE matchmatch criteria
cpe:2.3:a:postnuke_software_foundation:postnuke:0.7:*:*:*:*:*:*:*
0.62CPE matchmatch criteria
cpe:2.3:a:postnuke_software_foundation:postnuke:0.62:*:*:*:*:*:*:*
0.63CPE matchmatch criteria
cpe:2.3:a:postnuke_software_foundation:postnuke:0.63:*:*:*:*:*:*:*
0.64CPE matchmatch criteria
cpe:2.3:a:postnuke_software_foundation:postnuke:0.64:*:*:*:*:*:*:*
0.70CPE matchmatch criteria
cpe:2.3:a:postnuke_software_foundation:postnuke:0.70:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

AV:N/AC:H/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-27254 · Feb 21, 2006
This CVE's current EPSS score of 0.0213 is in the 75th percentile among its peer group of 1,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/fulldisclosure/2006-02/0469.html
news.postnuke.com / index.php
Patch
secunia.com / advisories/18937
PatchVendor Advisory
securityreason.com / securityalert/454
exchange.xforce.ibmcloud.com / vulnerabilities/24823
securityfocus.com / bid/16752
ExploitPatch
vupen.com / english/advisories/2006/0673
Vendor Advisory