What is CVE-2023-4698?

CVE-2023-4698 is a high-severity vulnerability in Usememos Memos, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2023-09-01.

How severe is CVE-2023-4698?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-4698 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Usememos Memos

CVE-2023-4698

Improper Input Validation in GitHub repository usememos/memos prior to 0.13.2.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2023-09-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.002

Affected products

Usememos Memos
Usememos Usememos/memos — versions unspecified

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

huntr.dev/bounties/e1107d79-1d63-4238-90b7-5cc150512654 (Exploit, Patch, Third Party Advisory)
github.com/usememos/memos/commit/c9aa2eeb9852047e4f41915eb30726bd25f07ecd (Patch)

Frequently asked questions

What is CVE-2023-4698?: CVE-2023-4698 is a high-severity vulnerability in Usememos Memos, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2023-09-01.
How severe is CVE-2023-4698?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-4698 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.