memos is a privacy-first, lightweight note-taking service. A CORS misconfiguration exists in memos 0.20.1 and earlier where an arbitrary origin is reflected with Access-Control-Allow-Credentials set to true. This may allow an attacking website to make a cross-origin request, allowing the attacker to read private information or make privileged changes to the system as the vulnerable user account. This vulnerability is fixed in 0.21.0.
The product uses a cross-domain policy file that includes domains that should not be trusted.
| Link | Tags |
|---|---|
| https://securitylab.github.com/advisories/GHSL-2024-034_memos/ | third party advisory exploit |
| https://github.com/usememos/memos/commit/8101a5e0b162044c16385bee4f12a4a653d050b9 | patch |
| https://github.com/usememos/memos/blob/v0.20.1/server/server.go#L163 | product |