CVE-2026-6634CWE-266CWE-285

usememos UpdateInstanceSetting App.tsx memos_access_token improper authorization

Medium · published April 20, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
27.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
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
EPSS
0.00347 · 27.1th percentile
Weaknesses
CWE-266 · Incorrect Privilege Assignment; CWE-285 · Improper Authorization
Published
2026-04-20T11:30Z
EPSS history
Timeline
  • 20 APR 11:30Z
    usememos UpdateInstanceSetting App.tsx memos_access_token improper authorization
    cvelistv5