Vulnerability · Published Dec 20, 2024 · Assigned by GitHub_M

CVE-2024-56357Cross-site Scripting vulnerability through custom widget URLs and form redirect URLs in grist-core

High 8.1

In plain English

A high-severity cross-site scripting in grist-core from gristlabs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.3%top 75.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
gristlabs	grist-core	< 1.3.1

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

References

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