CVE-2019-1020017 Missing authorization in Discourse
Attackers can hijack accounts via user-api OTP login because Discourse lacks a confirmation screen for this authentication method.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1020017?
CVE-2019-1020017 is a medium-severity missing authorization vulnerability in Discourse Discourse, published on 29 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Discourse before 2.3.0 and 2.4.x before 2.4.0.beta3 lacks a confirmation screen when logging in via a user-api OTP.
Which versions are affected by CVE-2019-1020017?
It affects 1 product.
Products include Discourse Discourse.
How do I fix CVE-2019-1020017?
No fix has been published for CVE-2019-1020017 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2019-1020017 being exploited?
There is no known exploitation of CVE-2019-1020017 in the wild and no public exploit code.
Other vulnerabilities in Discourse Discourse
- CVE-2021-41163 RCE via malicious SNS subscription payload
- CVE-2022-36066 Discourse vulnerable to RCE via admins uploading maliciously zipped file
- CVE-2022-39356 Discourse user account takeover via email and invite link
- CVE-2023-22468 Discourse vulnerable to Cross-site Scripting in local oneboxes
- CVE-2026-27934 Discourse leaks private topic title and post excerpt via user action API endpoint
Sources
Also known as GHSA-2j7x-g4cv-2735.