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Payloads stored in content is executed when a user with script/programming right edit them with WYSIWYG editors

Critical
surli published GHSA-f963-4cq8-2gw7 Aug 19, 2024

Package

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

Affected versions

< 15.10-rc-1

Patched versions

15.10-rc-1

Description

Impact

A user without script/programming right can trick a user with elevated rights to edit a content with a malicious payload using a WYSIWYG editor.
The user with elevated rights is not warned beforehand that they are going to edit possibly dangerous content.
The payload is executed at edit time.

Patches

This vulnerability has been patched in XWiki 15.10RC1.

Workarounds

No workaround. It is advised to upgrade to XWiki 15.10+.

References

For more information

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Attribution

This vulnerability has been reported on Intigriti by @floerer

Severity

Critical

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
Low
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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:L/UI:R/S:C/C:H/I:H/A:H

CVE ID

CVE-2024-43401

Weaknesses

Credits