What’s Vulnerable › Vulnerabilities

CVE-2024-56359: Cross-site Scripting vulnerability through HyperLink cells in grist-core

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-20 · updated 2026-06-17
• Weakness: CWE-79

Description

grist-core is a spreadsheet hosting server. A user visiting a malicious document and clicking on a link in a HyperLink cell using a control modifier (meaning for example Ctrl+click) could have their account compromised, since the link could use the javascript: scheme and be evaluated in the context of their current page. This issue has been patched in version 1.3.2. Users are advised to upgrade. Users unable to upgrade should avoid clicking on HyperLink cell links using a control modifier in documents prepared by people they do not trust.

Affected products

• gristlabs grist-core: before 1.3.2 — fixed in 1.3.2

How to fix

Upgrade to a fixed version: gristlabs grist-core 1.3.2. Check the vendor advisory for mitigations.

References

• https://github.com/gristlabs/grist-core/commit/a792bdc43b456dbdd6fdc50d8747f4c349fab2f4
• https://github.com/gristlabs/grist-core/security/advisories/GHSA-qv69-5cj2-53r9

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