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Privilege escalation (PR) from view right using Invitation.InvitationCommon

Critical
tmortagne published GHSA-px54-3w5j-qjg9 Apr 18, 2023

Package

maven xwiki-platform-invitation-ui (Maven)

Affected versions

>= 2.5-m-1

Patched versions

15.0-rc-1, 14.10.1, 14.4.8, 13.10.11

Description

Impact

Any user with view rights can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of Invitation.InvitationCommon. This page is installed by default.

See https://jira.xwiki.org/browse/XWIKI-20283 for the reproduction steps.

Patches

The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11.

Workarounds

The issue can be fixed by applying this patch on Invitation.InvitationCommon.

References

For more information

If you have any questions or comments about this advisory:

Severity

Critical
9.9
/ 10

CVSS base metrics

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

CVE ID

CVE-2023-29518

Weaknesses