CVE-2006-0800

Severity: low (CVSS 2.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2006-02-20 · updated 2026-06-16
Weakness: CWE-79

Description

Interpretation conflict in PostNuke 0.761 and earlier allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML tags with a trailing "<" character, which is interpreted as a ">" character by some web browsers but bypasses the blacklist protection in (1) the pnVarCleanFromInput function in pnAPI.php, (2) the pnSecureInput function in pnAntiCracker.php, and (3) the htmltext parameter in an edituser operation to user.php.

Affected products

Postnuke Software Foundation Postnuke: 0.7, 0.62, 0.63, 0.64, 0.70, 0.71 (+13)

References

http://archives.neohapsis.com/archives/fulldisclosure/2006-02/0469.html
http://news.postnuke.com/index.php?name=News&file=article&sid=2754
http://secunia.com/advisories/18937
http://securityreason.com/securityalert/454
http://www.securityfocus.com/bid/16752
http://www.vupen.com/english/advisories/2006/0673
https://exchange.xforce.ibmcloud.com/vulnerabilities/24823
http://archives.neohapsis.com/archives/fulldisclosure/2006-02/0469.html
http://news.postnuke.com/index.php?name=News&file=article&sid=2754
http://secunia.com/advisories/18937
http://securityreason.com/securityalert/454
http://www.securityfocus.com/bid/16752

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