CVE-2026-72730

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the Rich Text Editor rendered a chat-transcript username as HTML, allowing stored cross-site scripting. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.

CVSS v3 8.7 HIGH

8.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/discourse/discourse/commit/32920affe4ad97b461ca2ae2f664c5fefc374baf
https://github.com/discourse/discourse/commit/3fb1e8ead0d4f48d2cf55c8110825c7e8a6a45f5
https://github.com/discourse/discourse/commit/7eb35d076ab9b6a612e86182336ce9787ce402ea
https://github.com/discourse/discourse/commit/9633b8ecaf5a99f0407f5261b9bd1a05f7dac529
https://github.com/discourse/discourse/security/advisories/GHSA-wg48-qxjc-f459

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-10 17:17

Updated : 2026-09-08 20:54

NVD link : CVE-2026-72730

Mitre link : CVE-2026-72730

CVE.ORG link : CVE-2026-72730

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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