CVE-2023-33184 Blind SSRF in the Nextcloud Mail app on avatar endpoint
Blind SSRF in Nextcloud Mail allows attackers to send GET requests to internal services via the avatar endpoint.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-33184?
CVE-2023-33184 is a low-severity server-side request forgery vulnerability in nextcloud security-advisories, published on 27 May 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Nextcloud Mail is a mail app in Nextcloud. A blind SSRF attack allowed to send GET requests to services running in the same web server. It is recommended that the Mail app is update to version 3.02, 2.2.5 or 1.15.3.
Weakness: CWE-918
Which versions are affected by CVE-2023-33184?
It affects 1 product.
Products include Nextcloud Mail.
How do I fix CVE-2023-33184?
No fix has been published for CVE-2023-33184 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2023-33184 being exploited?
There is no known exploitation of CVE-2023-33184 in the wild and no public exploit code.
Other vulnerabilities in nextcloud security-advisories
- CVE-2021-32652 Missing permission check on email metadata retrieval
- CVE-2022-31132 Unauthenticated SSRF in 3rd party module "cerdic/csstidy"
- CVE-2024-52508 Nextcloud Mail auto configurator can be tricked into sending account information to wrong servers
- CVE-2023-23943 Blind SSRF via server URL input in the Nextcloud Mail app
- CVE-2023-45660 Require strict cookies for image proxy requests in Nextcloud Mail
Sources
Also known as GHSA-8gph-9895-w564.