CVE-2026-72728

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CVSS 3.1

6.3 medium

EPSS

<1%p8

Published

Aug 10, 2026 (Aug 10, 2026)

Modified

Sep 8, 2026

Description

Discourse is an open-source discussion platform. Prior to 2026.1.7, an authenticated user could submit specially formed URLs that bypassed the Onebox allowlist and embedded malicious content in a site. This issue is fixed in versions 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1.

Weakness: CWE-20
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

NVD CVE.org GitHub PoCs EPSS (0.2%)

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