CVE-2026-6634

usememos UpdateInstanceSetting App.tsx memos_access_token improper authorization

MEDIUM
6.3
CVSS Score
Published: April 20, 2026 at 11:30 AM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorMemos

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

A weakness has been identified in usememos memos up to 0.22.1. This affects the function memos_access_token of the file src/App.tsx of the component UpdateInstanceSetting. This manipulation of the argument additionalStyle/additionalScript causes improper authorization. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/358268
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/358268/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/793432

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-285CWE-266

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