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CVE-2024-53266: Cross-site Scripting (XSS) via topic titles when CSP disabled in Discourse
4.3
CVSS
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.
Classification
CVE ID: CVE-2024-53266
CVSS Base Severity: MEDIUM
CVSS Base Score: 4.3
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Products
Vendor: discourse
Product: discourse
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 11.83% (scored less or equal to compared to others)
EPSS Date: 2025-03-05 (when was this score calculated)