What is CVE-2022-4798?

CVE-2022-4798 is a medium-severity vulnerability in Usememos Memos, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2022-12-28.

How severe is CVE-2022-4798?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Usememos Memos

CVE-2022-4798

Authorization Bypass Through User-Controlled Key in GitHub repository usememos/memos prior to 0.9.1.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2022-12-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.4% 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: 0.007 · change: 0.000

Affected products

Usememos Memos
Usememos Usememos/memos — versions unspecified

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

github.com/usememos/memos/commit/3556ae4e651d9443dc3bb8a170dd3cc726517a53 (Patch, Third Party Advisory)
huntr.dev/bounties/e12eed25-1a8e-4ee1-b846-2d4df1db2fae (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-4798?: CVE-2022-4798 is a medium-severity vulnerability in Usememos Memos, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2022-12-28.
How severe is CVE-2022-4798?: Medium severity. CVSS v3 base score is 5.3 out of 10.