GHSA-x2qm-r4wx-8gpg: org.xwiki.platform:xwiki-platform-flamingo-theme-ui Eval Injection vulnerability

Package

maven org.xwiki.platform:xwiki-platform-flamingo-theme-ui (Maven)

Affected versions

>= 6.2.4, < 13.10.10

>= 14.0, < 14.4.6

>= 14.5, < 14.9-rc-1

Patched versions

13.10.10

14.4.6

14.9-rc-1

Description

Impact

It’s possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the newThemeName request parameter (URL parameter), in combination with additional parameters form_token=1&action=create.

For instance: http://127.0.0.1:8080/xwiki/bin/view/FlamingoThemesCode/WebHomeSheet?newThemeName=foo%22%2F%7D%7D%7B%7Basync%20async%3D%22true%22%20cached%3D%22false%22%20context%3D%22doc.reference%22%7D%7D%7B%7Bgroovy%7D%7Dprintln(%22hello%20from%20groovy!%22)%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fasync%7D%7D&form_token=1&action=create will execute the following groovy code: println(“hello from groovy!”) on the server.

Patches

This has been patched in the supported versions 13.10.10, 14.9-rc-1, and 14.4.6.

Workarounds

It is possible to edit FlamingoThemesCode.WebHomeSheet and manually perform the changes from the patch fixing the issue.

References

• xwiki/xwiki-platform@ea2e615#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284
• https://jira.xwiki.org/browse/XWIKI-19757

For more information

If you have any questions or comments about this advisory:

• Open an issue in Jira XWiki.org
• Email us at Security Mailing List

References

• GHSA-x2qm-r4wx-8gpg
• https://nvd.nist.gov/vuln/detail/CVE-2023-26477
• xwiki/xwiki-platform@ea2e615#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284
• https://jira.xwiki.org/browse/XWIKI-19757

manuelleduc published to xwiki/xwiki-platform

Mar 1, 2023

Published by the National Vulnerability Database

Mar 2, 2023

Published to the GitHub Advisory Database

Mar 3, 2023

Reviewed

Mar 3, 2023

Last updated

Mar 3, 2023