Hi everybody recently we have found that when creating a user, Nuxeo allows you to set some fields like firstName or lastName with HTML code. See examples below: curl -X POST -H "Content-Type: application/json" -u Administrator:Administrator -d '{ "entity-type": "user", "id":"xssuser", "properties":{"username":"xssuser", "email":"xss@athento.com", "lastName":"XSS attack!", "firstName":" alert(\"You have been hacked!\"); ", "password":"xsspasswd" } }' http://localhost:8080/nuxeo/api/v1/user will result in the following situation It is also possible to include the same fields in the creation-user form vía UI. When you try to search the user using the suggestion box (on the top-right corner of the page) you'll get the following message: If you load the default search page and your compromising documents (users in this case) is included in the results page, the script code is also executed. The same happens when you change dc:title field or any field listed in the search layout. ¿Is it any bugfix around this? Thanks, xss02.png xss03.png xss01.png

nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

XSS in suggestion box

Paco_Alías

Hi everybody

recently we have found that when creating a user, Nuxeo allows you to set some fields like firstName or lastName with HTML code. See examples below:

curl -X POST -H "Content-Type: application/json" -u Administrator:Administrator -d '{ "entity-type": "user", "id":"xssuser", "properties":{"username":"xssuser", "email":"xss@athento.com", "lastName":"XSS attack!", "firstName":"<script>alert(\"You have been hacked!\");</script>", "password":"xsspasswd" } }' <a href="http://localhost:8080/nuxeo/api/v1/user" target="test_blank" rel="nofollow noopener noreferrer">http://localhost:8080/nuxeo/api/v1/user</a>

will result in the following situation type an image title

It is also possible to include the same fields in the creation-user form vía UI.

When you try to search the user using the suggestion box (on the top-right corner of the page) you'll get the following message:

type an image title

If you load the default search page and your compromising documents (users in this case) is included in the results page, the script code is also executed.

type an image title

The same happens when you change dc:title field or any field listed in the search layout.

¿Is it any bugfix around this?

Thanks,

xss02.png

xss03.png

xss01.png

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Accepted answers

Florent_Guillau

Hi,

The problem with the results in the top-right search box for a compromised user name (or document title in some situations) is fixed for the next releases and hotfixes (6.0-HF26, 7.10-HF04, 8.1). Our internal reference for this is NXP-18833 (the ticket is not yet public).

I couldn't reproduce any issue with the display of a compromised document title in search results. Could you expand on the exact issue? Note that previous XSS issues have been fixed, notably for Nuxeo 6.0-HF20, so you should make sure you test on the latest hotfix release.