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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.

PUBLISHED Reserved 2025-08-22 | Published 2025-10-01 | Updated 2025-10-01 | Assigner GitHub_M




LOW: 3.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Problem types

CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Product status

< 3.5.1
affected

References

github.com/...course/security/advisories/GHSA-7p47-8m82-m2vf

github.com/...ommit/3a224fd546d894ee408e7414b6879e814a792f91

cve.org (CVE-2025-58054)

nvd.nist.gov (CVE-2025-58054)

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