Vulnerability DatabaseCVE-2025-56761
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CVE-2025-56761
September 03, 2025
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.
Related Resources (6)
https://www.sonarsource.com/blog/securing-go-applications-with-sonarqube-real-world-examples/
https://nvd.nist.gov/vuln/detail/CVE-2025-56761
https://github.com/usememos/memos/blob/v0.24.0/server/router/api/v1/user_service.go#L147
https://www.sonarsource.com/blog/securing-go-applications-with-sonarqube-real-world-examples
https://github.com/usememos/memos
https://github.com/usememos/memos/blob/v0.24.4/server/router/api/v1/resource_service.go#L48
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79
EPSS
Base Score:
0.03