{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53962", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-11T15:50:01.282Z", "datePublished": "2026-07-09T22:02:27.430Z", "dateUpdated": "2026-07-09T22:02:27.430Z"}, "containers": {"cna": {"title": "Discourse: Insufficient SVG sanitization logic", "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": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/discourse/discourse/security/advisories/GHSA-jmcf-3367-78vv", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/discourse/discourse/security/advisories/GHSA-jmcf-3367-78vv"}, {"name": "https://github.com/discourse/discourse/commit/3ee8343cd7f00d59d8513bee0a12e02d50bfc358", "tags": ["x_refsource_MISC"], "url": "https://github.com/discourse/discourse/commit/3ee8343cd7f00d59d8513bee0a12e02d50bfc358"}, {"name": "https://github.com/discourse/discourse/commit/810c2715799fd08b06fd6ffc664d9562fe9ea6ff", "tags": ["x_refsource_MISC"], "url": "https://github.com/discourse/discourse/commit/810c2715799fd08b06fd6ffc664d9562fe9ea6ff"}, {"name": "https://github.com/discourse/discourse/commit/92a699d89b84685b6fdd63cd0d0e371793c69dad", "tags": ["x_refsource_MISC"], "url": "https://github.com/discourse/discourse/commit/92a699d89b84685b6fdd63cd0d0e371793c69dad"}, {"name": "https://github.com/discourse/discourse/commit/b8ceb49f4ba52257be30eb3c2ce51a5bf03be5fe", "tags": ["x_refsource_MISC"], "url": "https://github.com/discourse/discourse/commit/b8ceb49f4ba52257be30eb3c2ce51a5bf03be5fe"}, {"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": "2026-07-09T22:02:27.430Z"}, "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, insufficient SVG sanitization in upload and user avatar handling could lead to cross-site scripting when a user visited specific URLs that are not normally part of community browsing. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5."}], "source": {"advisory": "GHSA-jmcf-3367-78vv", "discovery": "UNKNOWN"}}}}

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