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From "Rob Tompkins (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (TEXT-46) StringEscapeUtils.unescapeHtml: handle HTML escapes without semicolon
Date Fri, 19 May 2017 15:45:04 GMT

     [ https://issues.apache.org/jira/browse/TEXT-46?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rob Tompkins updated TEXT-46:
-----------------------------
    Fix Version/s:     (was: 1.1)
                   1.x

> StringEscapeUtils.unescapeHtml: handle HTML escapes without semicolon
> ---------------------------------------------------------------------
>
>                 Key: TEXT-46
>                 URL: https://issues.apache.org/jira/browse/TEXT-46
>             Project: Commons Text
>          Issue Type: Improvement
>            Reporter: Steve Hale
>            Priority: Minor
>             Fix For: 1.x
>
>         Attachments: commons-lang3-LANG-757.patch
>
>
> org.apache.commons.lang.StringEscapeUtils.unescapeHtml is useful in detecting and correcting
Cross-Site Scripting (XSS) attempts by converting escaped chars like &# 60; or & lt;
(remove spaces) into normal chars like < so patterns like HTML tags can be detected.  Many
browsers will allow variations without semicolons, particularly the long UTF-8 encoding like
&#0000060.  Please see: http://ha.ckers.org/xss.html
> Since this may not be standard HTML, maybe adding a boolean bLenient parameter to the
method could allow better backward compatibility.



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