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Security Advisories: GSA_kwCzR0hTQS02bWY1LTM2djktM2gyd84AAz9p

XWiki Platform vulnerable to privilege escalation (PR) from view right via Invitation application

Impact

Any user with view rights on any document can execute code with programming rights, leading to remote code execution by crafting an url with a dangerous payload. See the example below:
Open <xwiki-host>/xwiki/bin/view/%5D%5D%20%7B%7Basync%20async%3D%22true%22%20cached%3D%22false%22%20context%3D%22doc.reference%22%7D%7D%7B%7Bgroovy%7D%7Dprintln(%22Hello%20%22%20%2B%20%22from%20groovy!%22)%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fasync%7D%7D?sheet=Invitation.InvitationGuestActions&xpage=view where <xwiki-host> is the URL of your XWiki installation.

Patches

The problem as been patching on XWiki 15.0, 14.10.4 and 14.4.8.

Workarounds

It is possible to partially fix the issue by applying this patch. Note that some additional issue can remain and can be fixed automatically by a migration. Hence, it is advised to upgrade to one of the patched version instead of patching manually.

References

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-6mf5-36v9-3h2w
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS02bWY1LTM2djktM2gyd84AAz9p
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: 11 months ago
Updated: 6 months ago


CVSS Score: 9.9
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Identifiers: GHSA-6mf5-36v9-3h2w, CVE-2023-35150
References: Repository: https://github.com/xwiki/xwiki-platform
Blast Radius: 1.0

Affected Packages

maven:org.xwiki.platform:xwiki-platform-invitation-ui
Affected Version Ranges: >= 15.0-rc-1, < 15.0, >= 14.5, < 14.10.4, >= 2.4-m-2, < 14.4.8
Fixed in: 15.0, 14.10.4, 14.4.8