{"id":"CVE-2021-29261","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-29261","generatedAt":"2026-10-27T23:26:08.132Z","title":"The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute arbitrary code via a crafted workspace configuration.","description":"The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute arbitrary code via a crafted workspace configuration.","published":"2021-04-05T07:15:14.000Z","lastModified":"2026-06-17T03:47:28.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":[],"affected":["svelte/svelte"],"epss":{"score":0.01374,"percentile":0.71812,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/sveltejs/language-tools/commit/5d7bf1fd98bfe2cd2080863a3c95ce099b898075","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/sveltejs/language-tools/releases","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/sveltejs/language-tools/releases/tag/extensions-104.8.0","tags":["Release Notes","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://marketplace.visualstudio.com/items?itemName=svelte.svelte-vscode","tags":["Product","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://vuln.ryotak.me/advisories/3","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/sveltejs/language-tools/commit/5d7bf1fd98bfe2cd2080863a3c95ce099b898075","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/sveltejs/language-tools/releases","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/sveltejs/language-tools/releases/tag/extensions-104.8.0","tags":["Release Notes","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://marketplace.visualstudio.com/items?itemName=svelte.svelte-vscode","tags":["Product","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://vuln.ryotak.me/advisories/3","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-29261","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}