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XWiki Platform vulnerable to cross-site scripting in target parameter via share page by email

High severity GitHub Reviewed Published Jun 20, 2023 in xwiki/xwiki-platform • Updated Nov 7, 2023

Package

maven org.xwiki.platform:xwiki-platform-sharepage-api (Maven)

Affected versions

>= 2.6-rc-2, < 14.4.8
>= 14.5, < 14.10.4

Patched versions

14.4.8
14.10.4

Description

Impact

Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS).
For instance, the following URL execute an alter on the browser: <xwiki-host>/xwiki/bin/view/Main/?viewer=share&send=1&target=&target=%3Cimg+src+onerror%3Dalert%28document.domain%29%3E+%3Cimg+src+onerror%3Dalert%28document.domain%29%3E+%3Crenniepak%40intigriti.me%3E&includeDocument=inline&message=I+wanted+to+share+this+page+with+you., where <xwiki-host> is the URL of your XWiki installation.
See https://jira.xwiki.org/browse/XWIKI-20370 for me details.

Patches

The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.4, and 14.4.8.

Workarounds

The fix is only impacting Velocity templates and page contents, so applying this patch is enough to fix the issue.

References

https://jira.xwiki.org/browse/XWIKI-20370

For more information

If you have any questions or comments about this advisory:

Attribution

This vulnerability has been reported on Intigriti by René de Sain @renniepak.

References

@manuelleduc manuelleduc published to xwiki/xwiki-platform Jun 20, 2023
Published to the GitHub Advisory Database Jun 20, 2023
Reviewed Jun 20, 2023
Published by the National Vulnerability Database Jun 23, 2023
Last updated Nov 7, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L

EPSS score

5.516%
(93rd percentile)

Weaknesses

CVE ID

CVE-2023-35155

GHSA ID

GHSA-fwwj-wg89-7h4c

Source code

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