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vuln-cve/data/2026/72xxx/CVE-2026-72720.json
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{
"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"
}
}
]
}
}