CVE-2020-24327 Server-side request forgery in n/a
An attacker can exploit an SSRF vulnerability in Discourse's email editor to access internal resources or bypass security controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-24327?
CVE-2020-24327 is a medium-severity server-side request forgery vulnerability in Discourse Discourse, published on 23 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Server Side Request Forgery (SSRF) vulnerability exists in Discourse 2.3.2 and 2.6 via the email function. When writing an email in an editor, you can upload pictures of remote websites.
Weakness: CWE-918
Which versions are affected by CVE-2020-24327?
1 open source package ship an affected version, including discourse. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
discourse Bitnami | From 2.3.2 | 2.3.3, 2.6.1 |
Products include Discourse Discourse.
How do I fix CVE-2020-24327?
Upgrade discourse to a fixed version for your release line: 2.3.3 or 2.6.1.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2020-24327 being exploited?
There is no known exploitation of CVE-2020-24327 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 BIT-discourse-2020-24327, GHSA-8jmg-vw84-q638.