EUVD-2026-23838

| CVE-2026-6634 MEDIUM
2026-04-20 VulDB GHSA-gqp3-hfc3-8q54
Authentication Bypass
5.3
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

2
CVSS Changed
Apr 20, 2026 - 12:22 NVD
6.3 (MEDIUM) 5.3 (MEDIUM)
Analysis Generated
Apr 20, 2026 - 12:15 vuln.today

DescriptionNVD

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.

AnalysisAI

Improper authorization in usememos memos up to version 0.22.1 allows authenticated remote attackers to bypass access controls via manipulation of additionalStyle and additionalScript arguments in the UpdateInstanceSetting component, potentially leading to unauthorized information disclosure, modification, and service disruption. The vulnerability has publicly available exploit code and affects the memos_access_token function in src/App.tsx. …

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EUVD-2026-23838 vulnerability details – vuln.today
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