CVE-2025-56761

MEDIUM5.4EPSS 0.06%

Memos Vulnerable to Stored Cross-Site Scripting

Published: 9/4/2025Modified: 9/8/2025

Also known as:GHSA-cgrg-86m5-xm4wGO-2025-3937

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.

Affected packages (2)

Go/github.com/usememos/memosfrom 0, <= 0.22.0
Go/github.com/usememos/memosfrom 0

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References (6)

ADVISORYhttps://github.com/advisories/GHSA-cgrg-86m5-xm4w
ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-56761
PATCHhttps://github.com/usememos/memos
WEBhttps://github.com/usememos/memos/blob/v0.24.0/server/router/api/v1/user_service.go#L147
WEBhttps://github.com/usememos/memos/blob/v0.24.4/server/router/api/v1/resource_service.go#L48
WEBhttps://www.sonarsource.com/blog/securing-go-applications-with-sonarqube-real-world-examples