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Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in directus

High severity GitHub Reviewed Published Apr 4, 2022 in directus/directus • Updated Jan 27, 2023

Package

npm directus (npm)

Affected versions

< 9.7.0

Patched versions

9.7.0

Description

Impact

Unauthorized JavaScript can be executed by inserting an iframe into the rich text html interface that links to a file uploaded HTML file that loads another uploaded JS file in its script tag. This satisfies the regular content security policy header, which in turn allows the file to run any arbitrary JS.

Patches

This was resolved in directus/directus#12020 which is released in 9.7.0

Workarounds

You can disable the live embed in the WYSIWYG by adding { "media_live_embeds": false } to the Options Overrides option of the Rich Text HTML interface.

References

directus/directus#12020

For more information

If you have any questions or comments about this advisory:

References

@rijkvanzanten rijkvanzanten published to directus/directus Apr 4, 2022
Published by the National Vulnerability Database Apr 4, 2022
Published to the GitHub Advisory Database Apr 5, 2022
Reviewed Apr 5, 2022
Last updated Jan 27, 2023

Severity

High

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
Required
Scope
Unchanged
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:N/UI:R/S:U/C:H/I:H/A:H

EPSS score

0.108%
(44th percentile)

Weaknesses

CVE ID

CVE-2022-24814

GHSA ID

GHSA-xmjj-3c76-5w84

Source code

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