Description
Discourse is an open source discussion platform. A vulnerability present in versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 affects anyone who uses S3 for uploads. While scripts may be executed, they will only be run in the context of the S3/CDN domain, with no site credentials. Versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 fix the issue. As a workaround, disallow html or xml files for uploads in authorized_extensions. For existing html xml uploads, site owners can consider deleting them.
INFO
Published Date :
2026-01-28T18:15:52.902Z
Last Modified :
2026-01-28T19:29:11.123Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2025-66488 vulnerability.
| Vendors | Products |
|---|---|
| Discourse |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-66488.
