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Status published
Low
CVE-2025-58054
Discourse is vulnerable to XSS when quoting chat messages
Vulnerability Description
Discourse is an open-source community discussion platform. Versions 3.5.0 and below are vulnerable to XSS attacks through parsing and rendering of chat channel titles and chat thread titles via the quote message functionality when using the rich text editor. This issue is fixed in version 3.5.1.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
discourse
View all reports →Affected Software
discourse
Vulnerable Versions:
< 3.5.1
Timeline
Official Publish:
October 1st, 2025
Last Modified:
October 1st, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N