{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52798", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-08T18:02:19.731Z", "datePublished": "2026-06-24T20:14:13.965Z", "dateUpdated": "2026-06-25T17:15:43.282Z"}, "containers": {"cna": {"title": "Gogs: Stored XSS in `.ipynb` Preview", "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": "LOW", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/gogs/gogs/security/advisories/GHSA-jq8v-rmf6-65jw", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/gogs/gogs/security/advisories/GHSA-jq8v-rmf6-65jw"}, {"name": "https://github.com/gogs/gogs/pull/8319", "tags": ["x_refsource_MISC"], "url": "https://github.com/gogs/gogs/pull/8319"}, {"name": "https://github.com/gogs/gogs/commit/17b168b11ca759a7550e1f4bbd68bbde14db7785", "tags": ["x_refsource_MISC"], "url": "https://github.com/gogs/gogs/commit/17b168b11ca759a7550e1f4bbd68bbde14db7785"}, {"name": "https://github.com/gogs/gogs/releases/tag/v0.14.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/gogs/gogs/releases/tag/v0.14.3"}], "affected": [{"vendor": "gogs", "product": "gogs", "versions": [{"version": "< 0.14.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-24T20:14:13.965Z"}, "descriptions": [{"lang": "en", "value": "Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitize_ipynb, the inserted content is re-rendered on the client side without sanitization using marked() on elements with the .nb-markdown-cell class. During this process, links containing schemes such as javascript: can be regenerated. As a result, when a victim views an attacker-crafted .ipynb file and clicks the link, arbitrary JavaScript is executed in the Gogs origin, leading to a click-based Stored XSS. This vulnerability is fixed in 0.14.3."}], "source": {"advisory": "GHSA-jq8v-rmf6-65jw", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/gogs/gogs/security/advisories/GHSA-jq8v-rmf6-65jw", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-25T17:14:47.335180Z", "id": "CVE-2026-52798", "options": [{"Exploitation": "poc"}, {"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": "2026-06-25T17:15:43.282Z"}}]}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.14.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "gogs", "source": "cna", "vendor": "gogs"}, "product": "gogs", "vendor": "gogs"}], "created": "2026-06-24T22:00:04.717088+00:00", "updated": "2026-06-25T05:45:02.762613+00:00", "vendors": ["gogs", "gogs$PRODUCT$gogs"]}