{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72720","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-10T13:48:09.545Z","datePublished":"2026-08-10T15:41:51.764Z","dateUpdated":"2026-08-10T18:17:21.640Z"},"containers":{"cna":{"title":"Discourse: HTML injection in PrettyText.format_for_email from cooked-attribute reparsing","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/discourse/discourse/security/advisories/GHSA-3q6f-6gm9-m35v","tags":["x_refsource_CONFIRM"],"url":"https://github.com/discourse/discourse/security/advisories/GHSA-3q6f-6gm9-m35v"},{"name":"https://github.com/discourse/discourse/pull/42244","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/pull/42244"},{"name":"https://github.com/discourse/discourse/pull/42245","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/pull/42245"},{"name":"https://github.com/discourse/discourse/pull/42246","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/pull/42246"},{"name":"https://github.com/discourse/discourse/pull/42247","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/pull/42247"},{"name":"https://github.com/discourse/discourse/commit/234ee88a5b9b53bf938c53351eab20130323485f","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/234ee88a5b9b53bf938c53351eab20130323485f"},{"name":"https://github.com/discourse/discourse/commit/4b639a52f47fb3d46093bece9df147e4e9517a11","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/4b639a52f47fb3d46093bece9df147e4e9517a11"},{"name":"https://github.com/discourse/discourse/commit/a5d3b112d598242c1d1803d5a77bf98d5fdabd75","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/a5d3b112d598242c1d1803d5a77bf98d5fdabd75"},{"name":"https://github.com/discourse/discourse/commit/b25a074b165253e01fc4c8911b980fc68338ea16","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/b25a074b165253e01fc4c8911b980fc68338ea16"}],"affected":[{"vendor":"discourse","product":"discourse","versions":[{"version":"< 2026.1.7","status":"affected"},{"version":">= 2026.6.0-latest, < 2026.6.2","status":"affected"},{"version":">= 2026.7.0-latest, < 2026.7.1","status":"affected"},{"version":">= 2026.8.0-latest, < 2026.8.0-latest.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-10T15:41:51.764Z"},"descriptions":[{"lang":"en","value":"Discourse is an open-source discussion platform. Prior to 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1, Discourse has HTML injection in PrettyText.format_for_email because cooked attribute values are reparsed as markup. Crafted Vimeo iframe sources, secure-upload URLs or dimensions, and hashtag data-slug values can cause decoded attribute text to be reinterpreted as HTML. The vulnerable conversion also fails to strictly validate the Vimeo iframe host and path, allowing non-Vimeo allowlisted iframes to be converted. This issue is fixed in versions 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1."}],"source":{"advisory":"GHSA-3q6f-6gm9-m35v","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-10T18:13:33.296372Z","id":"CVE-2026-72720","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-10T18:17:21.640Z"}}]}}