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Data leak of notification filters of users

Moderate
surli published GHSA-pg4m-3gp6-hw4w Sep 18, 2024

Package

maven org.xwiki.platform:xwiki-platform-notifications-ui (Maven)

Affected versions

>= 13.2-rc-1

Patched versions

14.10.21, 15.5.5, 15.10.1, 16.0-rc-1

Description

Impact

It's possible to get access to notification filters of any user by using a URL such as <hostname>xwiki/bin/get/XWiki/Notifications/Code/NotificationFilterPreferenceLivetableResults?outputSyntax=plain&type=custom&user=<username>. This vulnerability impacts all versions of XWiki since 13.2-rc-1.
The filters do not provide much information (they mainly contain references which are public data in XWiki), though some info could be used in combination with other vulnerabilities.

Patches

The vulnerability has been patched in XWiki 14.10.21, 15.5.5, 15.10.1, 16.0RC1.
The patch consists in checking the rights of the user when sending the data.

Workarounds

It's possible to workaround the vulnerability by applying manually the patch: it's possible for an administrator to edit directly the document XWiki.Notifications.Code.NotificationFilterPreferenceLivetableResults to apply the same changes as in the patch. See c8c6545.

References

For more information

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Attribution

This vulnerability has been reported on Intigriti by Mete.

Severity

Moderate

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
Low
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:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVE ID

CVE-2024-46979

Weaknesses