[jira] [Commented] (OFBIZ-10187) OWASP sanitizer breaks proper rendering of HTML code

[Nicolas Malin (Jira)]

    [ https://issues.apache.org/jira/browse/OFBIZ-10187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16345136#comment-16345136 ]

Jacques Le Roux commented on OFBIZ-10187:
-----------------------------------------

Div is also referenced from inside owasp.properties: https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#DIV
Seems only "STYLE" is an issue.

So if you need to be careful you could base your policy on that. I wonder why OWASP did not, but they are like us: an open project with limited resources. So it's maybe just that.

> OWASP sanitizer breaks proper rendering of HTML code
> ----------------------------------------------------
>
>                 Key: OFBIZ-10187
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-10187
>             Project: OFBiz
>          Issue Type: Bug
>          Components: ALL COMPONENTS
>    Affects Versions: 16.11.04
>            Reporter: Michael Brohl
>            Assignee: Jacques Le Roux
>            Priority: Critical
>
> The current implementation of the sanitizer breaks the proper rendering of html code. In our case, class attributes are stripped from the html content.
> Example:
> {code:java}
>             <div class="item">
>                  <img src="<@ofbizContentUrl>/webcontent/img/slider/1.jpg</@ofbizContentUrl>" alt="" />
>                  <div class="container">
>                      <div class="slider-overlay">
>                          <h2>Lorem ipsum dolor sit amet</h2>
>                          <h3>At vero eos et accusam et justo</h3>
>                          <p>
>                              Lorem ipsum dolor sit amet, consetetur sadipscing elitr, dolores et ea rebum. Stet clita kasd gubergren, no sea
>                              takimata sanctus est Lorem ipsum dolor sit amet.
>                          </p>
>                          <a class="btn btn-grey" href="<@ofbizUrl>cms/~webpage_id=100</@ofbizUrl>">weitere Informationen</a>
>                      </div>
>                  </div>
>              </div>{code}
> will be rendered to
> {code:java}
>             <div>
>                  <img src="<@ofbizContentUrl>/webcontent/img/slider/1.jpg</@ofbizContentUrl>" alt="" />
>                  <div>
>                      <div>
>                          <h2>Lorem ipsum dolor sit amet</h2>
>                          <h3>At vero eos et accusam et justo</h3>
>                          <p>
>                              Lorem ipsum dolor sit amet, consetetur sadipscing elitr, dolores et ea rebum. Stet clita kasd gubergren, no sea
>                              takimata sanctus est Lorem ipsum dolor sit amet.
>                          </p>
>                          <a href="<@ofbizUrl>cms/~webpage_id=100</@ofbizUrl>">weitere Informationen</a>
>                      </div>
>                  </div>
>              </div>{code}
> I do not see any reason to not allow class attributes in html code. There might be other problems with these rules but this is a showstopper.

--
This message was sent by Atlassian JIRA
(v7.6.3#76005)