CVE-2023-25819 Discourse tags with no visibility are leaking into og:article:tag
Private tags are exposed in Open Graph metadata, allowing attackers to read hidden tag information from Discourse forums.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-25819?
CVE-2023-25819 is a medium-severity vulnerability in Discourse Discourse, published on 4 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Discourse is an open source platform for community discussion. Tags that are normally private are showing in metadata. This affects any site running the `tests-passed` or `beta` branches >= 3.1.0.beta2. The issue is patched in the latest `beta` and `tests-passed` version of Discourse.
Which versions are affected by CVE-2023-25819?
1 open source package ship an affected version, including discourse. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
discourse Bitnami | All versions | 3.1.0 |
Products include Discourse Discourse.
How do I fix CVE-2023-25819?
Upgrade discourse to 3.1.0 or later.
Is CVE-2023-25819 being exploited?
There is no known exploitation of CVE-2023-25819 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-2023-25819, GHSA-xx2h-mwm7-hq6q.