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XSS in the Flamingo theme manager

Moderate
surli published GHSA-vmhh-xh3g-j992 May 25, 2022

Package

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

Affected versions

>= 6.3-rc-1, >= 6.2.4

Patched versions

12.10.11, 14.0-rc-1, 13.4.7, 13.10.3

Description

Impact

We found a possible XSS vector in the FlamingoThemesCode.WebHomeSheet wiki page related to the "newThemeName" form field.

Patches

The issue is patched in versions 12.10.11, 14.0-rc-1, 13.4.7, 13.10.3.

Workarounds

The easiest workaround is to edit the wiki page FlamingoThemesCode.WebHomeSheet (with wiki editor) and change the line

<input type="hidden" name="newThemeName" id="newThemeName" value="$request.newThemeName" />

into

<input type="hidden" name="newThemeName" id="newThemeName" value="$escapetool.xml($request.newThemeName)" />

References

For more information

If you have any questions or comments about this advisory:

Severity

Moderate
6.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

CVE ID

CVE-2022-29251