When Memos 0.22 is configured to store objects locally, an attacker can create a file via the CreateResource endpoint containing a path traversal sequence in the name, allowing arbitrary file write on the server.
CVSS Score
4.3
EPSS Score
0.001
Published
2025-09-03
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 Score
5.4
EPSS Score
0.0
Published
2025-09-03
The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.
CVSS Score
9.8
EPSS Score
0.039
Published
2025-07-29
All versions of the package github.com/usememos/memos/server are vulnerable to Cross-site Scripting (XSS) due to insufficient checks on external resources, which allows malicious actors to introduce links starting with a javascript: scheme.
CVSS Score
5.4
EPSS Score
0.001
Published
2023-02-15