What is CVE-2022-4688?

CVE-2022-4688 is a high-severity vulnerability in Usememos Memos, classified under Improper Authorization. CVSS score: 8.8/10. Published 2022-12-23.

How severe is CVE-2022-4688?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Usememos Memos

CVE-2022-4688

Improper Authorization in GitHub repository usememos/memos prior to 0.9.0.

Published 2022-12-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.6th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.000

Affected products

Usememos Memos
Usememos Usememos/memos — versions unspecified

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

github.com/usememos/memos/commit/dca35bde877aab6e64ef51b52e590b5d48f692f9 (Patch, Third Party Advisory)
huntr.dev/bounties/23856e7e-94ff-4dee-97d0-0cd47e9b8ff6 (Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-4688?: CVE-2022-4688 is a high-severity vulnerability in Usememos Memos, classified under Improper Authorization. CVSS score: 8.8/10. Published 2022-12-23.
How severe is CVE-2022-4688?: High severity. CVSS v3 base score is 8.8 out of 10.