9.8

CVE-2022-4866: usememos memos Cross-site Scripting

CVSS: 9.8v3.0CriticalModified
AliasesGHSA-x9p9-v3x6-68mq
Published 31-12-2022Last modified 09-04-2025
Open JSON

Vulnerability summary

CVE-2022-4866 is a critical (CVSS 9.8) Cross-site Scripting vulnerability in usememos memos. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 63% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (CVE.org)
EPSS score
1.02%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 31-12-2022
    PublishedVulnerability first disclosed.
  2. 09-04-2025
    Last modifiedVulnerability information updated.

Description

Cross-site Scripting (XSS) - Stored in GitHub repository usememos/memos prior to 0.9.1.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.02%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

+0.03 pp

From 0.99% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.02%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (huntr.dev)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Usememos2 products
Github.com/usememos1 product
  • memos< 0.9.1

2 vendors · 3 products

References

4 links