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Users with SCRIPT right can execute arbitrary code in XWiki

Low severity GitHub Reviewed Published Sep 10, 2020 in xwiki/xwiki-platform • Updated Feb 1, 2023

Package

maven org.xwiki.platform:xwiki-platform-oldcore (Maven)

Affected versions

< 11.10.5
>= 12.0.0, < 12.2.1

Patched versions

11.10.5
12.2.1

Description

Impact

Any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution.

Patches

It has been patched in both version XWiki 12.2.1 and XWiki 11.10.5.

Workarounds

The only workaround is to give SCRIPT right only to trusted users.

References

https://jira.xwiki.org/browse/XWIKI-17141
https://jira.xwiki.org/browse/XWIKI-17266

It's been reported by the GitHub Security Lab under #GHSL-2020-046.

For more information

If you have any questions or comments about this advisory:

References

@tmortagne tmortagne published to xwiki/xwiki-platform Sep 10, 2020
Reviewed Sep 10, 2020
Published to the GitHub Advisory Database Sep 10, 2020
Published by the National Vulnerability Database Sep 10, 2020
Last updated Feb 1, 2023

Severity

Low

EPSS score

0.108%
(45th percentile)

CVE ID

CVE-2020-15171

GHSA ID

GHSA-7qw5-pqhc-xm4g

Source code

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