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CVE-2022-4839: usememos memos Cross-site Scripting

CVSS: 8.0v3.0HighModified
AliasesGHSA-gxqf-4g4p-q3hc
Published 29-12-2022Last modified 09-04-2025
Open JSON

Vulnerability summary

CVE-2022-4839 is a high (CVSS 8.0) Cross-site Scripting vulnerability in usememos memos. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.0/10
010
High · v3.0 (CVE.org)
EPSS score
0.79%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 29-12-2022
    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

0.79%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

+0.02 pp

From 0.77% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.79%

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