{"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"}}]}}