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

CVE-2023-35150 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

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

  • https://jira.xwiki.org/browse/XWIKI-20285

For more information

If you have any questions or comments about this advisory:

Basic information

Type
reviewed
Severity
critical
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2023-06-20 16:46:11 UTC
Updated
2023-11-12 05:04:45 UTC
GitHub reviewed
2023-06-20 16:46:11 UTC
NVD published
2023-06-23

EPSS Score

Score Percentile
37.85% 97.18%

CVSS Scores

Base score Version Severity Vector
9.9 3.1 —
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.

Identifiers

Type Value
GHSA GHSA-6mf5-36v9-3h2w ↗
CVE CVE-2023-35150 ↗

CWEs

CWE id Name
CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Affected packages (3)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
maven org.xwiki.platform:xwiki-platform-invitation-ui >= 2.4-m-2, < 14.4.8 14.4.8 —
maven org.xwiki.platform:xwiki-platform-invitation-ui >= 14.5, < 14.10.4 14.10.4 —
maven org.xwiki.platform:xwiki-platform-invitation-ui >= 15.0-rc-1, < 15.0 15.0 —

References

cvelogic Threat Intelligence