PT-2006-1849 · Postnuke · Postnuke
Maksymilian Arciemowicz
·
Published
2006-02-20
·
Updated
2017-07-20
·
CVE-2006-0800
CVSS v2.0
2.6
Low
| Vector | AV:N/AC:H/Au:N/C:N/I:P/A:N |
Name of the Vulnerable Software and Affected Versions
PostNuke versions 0.761 and earlier
Description
The issue allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML tags with a trailing "<" character. This character is interpreted as a ">" character by some web browsers but bypasses the blacklist protection in certain functions, including the
pnVarCleanFromInput function in pnAPI.php, the pnSecureInput function in pnAntiCracker.php, and the htmltext parameter in an edituser operation to user.php.Recommendations
For PostNuke versions 0.761 and earlier, consider disabling the
pnVarCleanFromInput function, the pnSecureInput function, and restricting access to the htmltext parameter in the edituser operation to user.php until a patch is available. Avoid using HTML tags with a trailing "<" character in the affected functions and parameters to minimize the risk of exploitation.Exploit
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Postnuke