CVE-2026-125398

What it is

Instatic before 0.0.21 contains an authorization bypass vulnerability in handleRowAuthor that allows authenticated users to skip table-level access checks by loading rows with getDataRow() instead of loadRowForAccess(). Attackers holding content.edit.any but lacking data.system.tables.read can send PATCH requests to /admin/api/cms/data/rows/:id/author to read system-table rows and reassign their authors.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. High risk of data exposure.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-11-09 22:03 UTC ReservedThe CVE id was reserved by its CNA
2. 2026-11-10 00:17 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-11-10 00:17 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: not scored yet.
• Severity: 7.1 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-11-10 00:17 UTC

Last modified

2026-11-10 00:17 UTC

Weakness

CWE-862 · Missing authorization

Record status

Received

Attack profile CVSS 4.0 · 7.1

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

High

Integrity

Low

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-125398.md and follow it. Check whether this project is affected by CVE-2026-125398. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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