What’s Vulnerable › Vulnerabilities

CVE-2025-56761

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-09-03 · updated 2026-06-17
• Weakness: CWE-79

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 products

• usememos/memos: 0.22.0

References

• https://github.com/usememos/memos/blob/v0.24.0/server/router/api/v1/user_service.go#L147
• https://github.com/usememos/memos/blob/v0.24.4/server/router/api/v1/resource_service.go#L48
• https://www.sonarsource.com/blog/securing-go-applications-with-sonarqube-real-world-examples/

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