{"id":"CVE-2026-72728","title":"Discourse is an open-source discussion platform","summary":"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 202…","severity":"medium","cvss":6.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","cwe":["CWE-20"],"published":"2026-08-10","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:54:37.790","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72728","references":[{"url":"https://github.com/discourse/discourse/commit/92eec47e8b477cb8b4ccdb237e26dc1ba8f8b76b","label":"security-advisories@github.com"},{"url":"https://github.com/discourse/discourse/security/advisories/GHSA-qp9j-3v7r-wrvr","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00185,"epssPercentile":0.08303,"ingestedAt":"2026-09-08T21:11:12.273Z","slug":"CVE-2026-72728","body":"## Overview\n\nDiscourse 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":34.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}