CVE-2022-4807 Improper Access Control in usememos/memos
Attackers can access or modify data without proper authorization in the Memos web application.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-4807?
CVE-2022-4807 is a high-severity missing authorization vulnerability in Usememos Memos, published on 28 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Access Control in GitHub repository usememos/memos prior to 0.9.1.
Weakness: CWE-284
Which versions are affected by CVE-2022-4807?
3 open source packages ship an affected version, including github.com/usememos/memos. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/usememos/memos Go | All versions | 0.9.1 |
github.com/usememos/memos Go | All versions | 0.9.1 |
github.com/usememos/memos Go | All versions | 0.9.1 |
Products include Usememos Memos.
How do I fix CVE-2022-4807?
Upgrade github.com/usememos/memos to 0.9.1 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2022-4807 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4807 exists.
Other vulnerabilities in Usememos Memos
- CVE-2025-50738 Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs
- CVE-2025-22952 Memos Server-Side Request Forgery (SSRF)
- CVE-2023-0109 Stored XSS in usememos/memos
- CVE-2023-4696 Improper Access Control in usememos/memos
- CVE-2022-4866 Cross-site Scripting (XSS) - Stored in usememos/memos
Sources
Also known as GHSA-gfj4-wg89-m22r, GO-2022-1256.