Description

XWiki Platform Wiki UI Main Wiki is software for managing subwikis on XWiki Platform, a generic wiki platform. Starting with version 5.3-milestone-2 and prior to versions 13.10.6 and 14.4, it's possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the request (URL parameter) using the `XWikiServerClassSheet` if the user has view access to this sheet and another page that has been saved with programming rights, a standard condition on a public read-only XWiki installation or a private XWiki installation where the user has an account. This allows arbitrary Groovy/Python/Velocity code execution which allows bypassing all rights checks and thus both modification and disclosure of all content stored in the XWiki installation. Also, this could be used to impact the availability of the wiki. This has been patched in versions 13.10.6 and 14.4. As a workaround, edit the affected document `XWiki.XWikiServerClassSheet` or `WikiManager.XWikiServerClassSheet` and manually perform the changes from the patch fixing the issue. On XWiki versions 12.0 and later, it is also possible to import the document `XWiki.XWikiServerClassSheet` from the xwiki-platform-wiki-ui-mainwiki package version 14.4 using the import feature of the administration application as there have been no other changes to this document since XWiki 12.0.

Severity

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

CVSS 4.0 Severity and Metrics:

NIST: NVD

N/A

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score:  8.8 HIGH

Vector:  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA:  GitHub, Inc.

Base Score:  9.9 CRITICAL

Vector:  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

CVSS 2.0 Severity and Metrics:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://github.com/xwiki/xwiki-platform/commit/fc77f9f53bc65a4a9bfae3d5686615309c0c76cc	Patch  Third Party Advisory
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-xr6m-2p4m-jvqf	Exploit  Third Party Advisory
https://jira.xwiki.org/browse/XWIKI-19746	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-116	Improper Encoding or Escaping of Output	NIST
CWE-94	Improper Control of Generation of Code ('Code Injection')	GitHub, Inc.
CWE-95	Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')	GitHub, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

CVE Modified by GitHub, Inc. 5/14/2024 7:04:59 AM

Action	Type	Old Value	New Value

Reanalysis by NIST 6/27/2023 4:52:09 PM

Action	Type	Old Value	New Value
Added	CWE		NIST CWE-116
Removed	CWE	NIST CWE-94

Initial Analysis by NIST 9/14/2022 12:17:13 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR *cpe:2.3:a:xwiki:xwiki:5.3:milestone2:*:*:*:*:*:* *cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* versions from (including) 5.4 up to (excluding) 13.10.6 *cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* versions from (including) 14.0 up to (excluding) 14.4
Added	CVSS V3.1		NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-94
Changed	Reference Type	https://github.com/xwiki/xwiki-platform/commit/fc77f9f53bc65a4a9bfae3d5686615309c0c76cc No Types Assigned	https://github.com/xwiki/xwiki-platform/commit/fc77f9f53bc65a4a9bfae3d5686615309c0c76cc Patch, Third Party Advisory
Changed	Reference Type	https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-xr6m-2p4m-jvqf No Types Assigned	https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-xr6m-2p4m-jvqf Exploit, Third Party Advisory
Changed	Reference Type	https://jira.xwiki.org/browse/XWIKI-19746 No Types Assigned	https://jira.xwiki.org/browse/XWIKI-19746 Vendor Advisory