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vuln-cve/data/2026/53xxx/CVE-2026-53963.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-53963",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-06-11T15:50:01.282Z",
"datePublished": "2026-07-09T22:05:46.329Z",
"dateUpdated": "2026-07-14T01:19:05.114Z"
},
"containers": {
"cna": {
"title": "Discourse: Stored-XSS in 2FA delete confirmation modal",
"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": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/discourse/discourse/security/advisories/GHSA-wg5x-7f23-m3r5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/discourse/discourse/security/advisories/GHSA-wg5x-7f23-m3r5"
},
{
"name": "https://github.com/discourse/discourse/commit/40de62cddadc65c328a1028ab999f3fa94adbfed",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse/commit/40de62cddadc65c328a1028ab999f3fa94adbfed"
},
{
"name": "https://github.com/discourse/discourse/commit/529e17d4d570a48972e7cf64720e5dd1fdf23ca8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse/commit/529e17d4d570a48972e7cf64720e5dd1fdf23ca8"
},
{
"name": "https://github.com/discourse/discourse/commit/d92973e51a46cf6dd20c71e6068e6769b67eea5b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse/commit/d92973e51a46cf6dd20c71e6068e6769b67eea5b"
},
{
"name": "https://github.com/discourse/discourse/commit/daea5214d833eacbdd3b1a78d99eb14e9cabd915",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse/commit/daea5214d833eacbdd3b1a78d99eb14e9cabd915"
},
{
"name": "https://github.com/discourse/discourse/releases/tag/v2026.1.5",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse/releases/tag/v2026.1.5"
},
{
"name": "https://github.com/discourse/discourse/releases/tag/v2026.4.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse/releases/tag/v2026.4.2"
},
{
"name": "https://github.com/discourse/discourse/releases/tag/v2026.5.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse/releases/tag/v2026.5.1"
},
{
"name": "https://github.com/discourse/discourse/releases/tag/v2026.6.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse/releases/tag/v2026.6.0"
}
],
"affected": [
{
"vendor": "discourse",
"product": "discourse",
"versions": [
{
"version": ">= 2026.1.0-latest, < 2026.1.5",
"status": "affected"
},
{
"version": ">= 2026.4.0-latest, < 2026.4.2",
"status": "affected"
},
{
"version": ">= 2026.5.0-latest, < 2026.5.1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-07-09T22:05:46.329Z"
},
"descriptions": [
{
"lang": "en",
"value": "Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a malicious second factor name on an attacker-controlled account was not escaped in the delete confirmation dialog, allowing stored cross-site scripting when an administrator impersonated that account. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5."
}
],
"source": {
"advisory": "GHSA-wg5x-7f23-m3r5",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-14T01:17:07.991865Z",
"id": "CVE-2026-53963",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-07-14T01:19:05.114Z"
}
}
]
}
}