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XSS vulnerability through custom widget URLs and form redirect URLs

High
paulfitz published GHSA-cq5q-cqr7-vmf6 Dec 20, 2024

Package

docker gristlabs/grist (docker)

Affected versions

< 1.3.1

Patched versions

1.3.1

Description

Impact

A user visiting a malicious document or submitting a malicious form could have their account compromised, because it was possible to use the javascript: scheme with custom widget URLs and form redirect URLs.

Patches

Fixed since version 1.3.1
Mitigation was to restricted custom widget URLs and form redirect URLs to http(s) schemes.

Workarounds

Avoid visiting documents or forms 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-2024-56357

Weaknesses

No CWEs

Credits