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XSS vulnerability through svg attachment previews

High
paulfitz published GHSA-jvfm-gf4f-33q3 Dec 20, 2024

Package

docker gristlabs/grist (docker)

Affected versions

< 1.3.2

Patched versions

1.3.2

Description

Impact

A user visiting a malicious document and previewing an attachment could have their account compromised, because JavaScript in an SVG file would be evaluated in the context of their current page.

Patches

Fixed since version 1.3.2
Mitigation was to add an appropriate content security policy for attachments.

Workarounds

Avoid previewing attachments in documents prepared by people you do not trust.

References

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
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:R/S:U/C:H/I:H/A:N

CVE ID

CVE-2024-56358

Weaknesses

No CWEs

Credits