{"id":"CVE-2020-36632","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-36632","generatedAt":"2026-10-27T22:23:47.495Z","title":"A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0.","description":"A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0. This affects the function unflatten of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). It is possible to initiate the attack remotely. Upgrading to version 5.0.1 is able to address this issue. The name of the patch is 20ef0ef55dfa028caddaedbcb33efbdb04d18e13. It is recommended to upgrade the affected component. The identifier VDB-216777 was assigned to this vulnerability.","published":"2022-12-25T20:15:25.000Z","lastModified":"2026-06-17T03:15:51.000Z","status":"Modified","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-1321"],"affected":["flat project/flat"],"epss":{"score":0.01211,"percentile":0.68271,"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 (1.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/hughsk/flat/commit/20ef0ef55dfa028caddaedbcb33efbdb04d18e13","tags":["Patch","Third Party Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/hughsk/flat/issues/105","tags":["Issue Tracking","Third Party Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/hughsk/flat/pull/106","tags":["Patch","Third Party Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/hughsk/flat/releases/tag/5.0.1","tags":["Release Notes","Third Party Advisory"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.216777","tags":["Third Party Advisory"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.216777","tags":["Third Party Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/hughsk/flat/commit/20ef0ef55dfa028caddaedbcb33efbdb04d18e13","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/hughsk/flat/issues/105","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/hughsk/flat/pull/106","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/hughsk/flat/releases/tag/5.0.1","tags":["Release Notes","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://vuldb.com/?ctiid.216777","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://vuldb.com/?id.216777","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-36632","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."}