CVE-2024-56357: grist-core XSS — Fix

Description

grist-core is a spreadsheet hosting server. 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. This issue has been patched in version 1.3.1. Users are advised to upgrade. Users unable to upgrade should avoid visiting documents or forms prepared by people they do not trust.

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CVSS v3.1 Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
getgrist	grist-core	< 1.3.1

References

Advisories & Patches

https://github.com/gristlabs/grist-core/commit/10b069005ec8d5f511e6554a56111d8f257f029e https://github.com/gristlabs/grist-core/security/advisories/GHSA-cq5q-cqr7-vmf6

Frequently Asked Questions

What is CVE-2024-56357? +

grist-core is a spreadsheet hosting server. 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. This issue has been patched in version 1.3.1. Users are advised to upgrade. Users unable to upgrade should avoid visiting documents or forms prepared by people they do not trust. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2024-56357? +

CVE-2024-56357 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-56357? +

CVE-2024-56357 affects products from getgrist, specifically: grist-core. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-56357? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-56357