Auth bypass in Getgrist Grist-Core
CVE-2025-64753
grist-core is a spreadsheet hosting server. Prior to version 1.7.7, a user with only partial read access to a document could still access endpoints listing hashes for versions of that document and receive a full list of changes between versions, even if those changes contained cells, columns, or tables to which the user was not supposed to have read access. This was fixed in version 1.7.7 by restricting the `/compare` endpoint to users with full read access. As a workaround, remove sensitive document history using the `/states/remove` endpoint. Another possibility is to block the `/compare` endpoint.
Vulnerability class: Broken Access Control
EPSS: 0.002 (12.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Getgrist Grist-core
- Gristlabs Grist-core — versions < 1.7.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2025-64753?
- CVE-2025-64753 is a medium-severity vulnerability in Getgrist Grist-Core, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2025-11-13.
- How severe is CVE-2025-64753?
- Medium severity. CVSS v3 base score is 5.3 out of 10.