CVE-2025-58054

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.

CVSS v3.1 Score

3.5

LOW

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

Weakness Type (CWE)

CWE-80 CWE-80

Affected Products

Vendor	Product	Versions
discourse	discourse	< 3.5.0
discourse	discourse	< 3.6.0
discourse	discourse	All

References

Advisories & Patches

https://github.com/discourse/discourse/commit/3a224fd546d894ee408e7414b6879e814a792f91 https://github.com/discourse/discourse/security/advisories/GHSA-7p47-8m82-m2vf

Frequently Asked Questions

What is CVE-2025-58054? +

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. It has a CVSS v3.1 base score of 3.5 (LOW).

How severe is CVE-2025-58054? +

CVE-2025-58054 has a CVSS v3.1 score of 3.5 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-58054? +

CVE-2025-58054 affects products from discourse, specifically: discourse. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-58054? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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