5.4

CVE-2025-56761: usememos memos Cross-site Scripting

CVSS: 5.4v3.1MediumAnalyzed
AliasesGHSA-cgrg-86m5-xm4wGO-2025-3937
Published 03-09-2025Last modified 04-09-2025
Open JSON

Vulnerability summary

CVE-2025-56761 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in usememos memos. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.26%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2025:15538-1OPENSUSE-SU-2026:21483-1SUSE-SU-2025:03289-1

Timeline

  1. 03-09-2025
    PublishedVulnerability first disclosed.
  2. 04-09-2025
    Last modifiedVulnerability information updated.

Description

Memos 0.22 is vulnerable to Stored Cross site scripting (XSS) vulnerabilities by the upload attachment and user avatar features. Memos does not verify the content type of the uploaded data and serve it back as is. An authenticated attacker can use this to elevate their privileges when the stored XSS is viewed by an admin.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

+0.01 pp

From 0.25% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.26%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (sonarsource.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Github.com/usememos1 product
  • memos≤ 0.22.0 | All versions (No fix recorded)
Usememos1 product

2 vendors · 2 products

References

7 links