A vulnerability has been reported in WordPress, which can be exploited by malicious users to conduct script insertion attacks.
Certain input containing protocol strings (e.g. the HREF attribute of the <A> HTML tag) is not properly sanitised in the KSES library before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in the context of an affected site when the malicious data is being viewed.
The vulnerability is reported in versions prior to 3.0.4.
Solution: Update to version 3.0.4.
Provided and/or discovered by: Mauro Gentile
The vendor also credits Jon Cave (duck_).
Original Advisory: WordPress:
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