CVE-2024-53266
Cross-site Scripting (XSS) via topic titles when CSP disabled in Discourse
5.4
MEDIUM
CVSS 3.1
EPSS 0.21%
Description
Discourse is an open source platform for community discussion. In affected versions with some combinations of plugins, and with CSP disabled, activity streams in the user's profile page may be vulnerable to XSS. This has been patched in the latest version of Discourse core. Users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled.
How to fix CVE-2024-53266
To remediate CVE-2024-53266, upgrade the affected package to a fixed version below.
- —upgrade to 3.3.3 or later
Is CVE-2024-53266 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.3.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |