CVE-2025-64753Network attack vector

Authenticated history disclosure via underchecked comparisons

Published Nov 13, 2025 · Updated Nov 14, 2025

Incorrect authorization in Grist Labs grist-core before 1.7.7 allows remote authenticated users to read restricted document history. The /compare endpoint accepts partial document read access and returns version hashes and complete changes without enforcing full read access. Exploitation requires document access and exposes hidden cells, columns, or tables from retained history without modifying data or interrupting service.

CVSS severity5.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Grist Labs grist-core before 1.7.7 allows remote authenticated users to read restricted document history. The /compare endpoint accepts partial document read access and returns version hashes and complete changes without enforcing full read access. Exploitation requires document access and exposes hidden cells, columns, or tables from retained history without modifying data or interrupting service.

The record

CVE
CVE-2025-64753
Published
Nov 13, 2025
Updated
Nov 14, 2025
Vendor
Grist Labs
Product
grist-core
Classifications
CWE-863, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.7.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grist Labs · grist-coreversion=< 1.7.7

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.3GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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