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CVE-2025-58054

Good to know:

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Date: October 1, 2025

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.

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2025-58054
https://github.com/discourse/discourse/commit/3a224fd546d894ee408e7414b6879e814a792f91
https://github.com/discourse/discourse/security/advisories/GHSA-7p47-8m82-m2vf
https://www.mend.io/vulnerability-database/CVE-2025-58054

Severity Score

Weakness Type (CWE)

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

CWE-80

Top Fix

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Upgrade Version

Upgrade to version https://github.com/discourse/discourse.git - v3.5.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

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