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Unauthenticated user can have information about hidden users on subwikis through uorgsuggest.vm

Low severity GitHub Reviewed Published Apr 12, 2023 in xwiki/xwiki-platform • Updated Apr 26, 2023

Package

maven org.xwiki.platform:xwiki-platform-web-templates (Maven)

Affected versions

>= 13.9-rc-1, < 13.10.8
>= 14.0-rc-1, < 14.4.3
>= 14.5, < 14.7-rc-1

Patched versions

13.10.8
14.4.3
14.7-rc-1

Description

Impact

It's possible to list some users who are normally not viewable from subwiki by requesting users on a subwiki which allows only global users with uorgsuggest.vm. This issue only concerns hidden users from main wiki.
Note that the disclosed information are the username and the first and last name of users, no other information is leaked.

Patches

The problem has been patched on XWiki 13.10.8, 14.4.3 and 14.7RC1.

Workarounds

It's possible to workaround this vulnerability by patching directly uorgsuggest.vm to apply the same changes as in xwiki/xwiki-platform#1883.

References

For more information

If you have any questions or comments about this advisory:

References

@tmortagne tmortagne published to xwiki/xwiki-platform Apr 12, 2023
Published to the GitHub Advisory Database Apr 12, 2023
Reviewed Apr 12, 2023
Published by the National Vulnerability Database Apr 15, 2023
Last updated Apr 26, 2023

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS score

0.086%
(38th percentile)

Weaknesses

CVE ID

CVE-2023-29203

GHSA ID

GHSA-vvp7-r422-rx83

Source code

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