PT-2026-69870 · Discourse · Discourse
CVE-2026-72730
·
Published
2026-08-10
·
Updated
2026-08-17
CVSS v3.1
8.7
High
| Vector | AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
Discourse versions prior to 2026.1.6
Discourse versions prior to 2026.5.2
Discourse versions prior to 2026.6.1
Discourse versions prior to 2026.7.0
Description
The Rich Text Editor renders a chat-transcript username as HTML, which enables stored cross-site scripting (XSS), a technique where malicious scripts are permanently stored on the target server and executed in the browser of users viewing the affected content.
Recommendations
Update to version 2026.1.6
Update to version 2026.5.2
Update to version 2026.6.1
Update to version 2026.7.0
Exploit
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Discourse