Description
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, insufficient SVG sanitization in upload and user avatar handling could lead to cross-site scripting when a user visited specific URLs that are not normally part of community browsing. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
CVSS 5.4EPSS 0.299%Risk 0.55
View source- Published
- 2026-07-09 22:17:05
- Affected versions
- <2026.6.0, <2026.5.1, <2026.4.2, <2026.1.5
- Type
- Web application
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N