{"id":"CVE-2020-28337","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-28337","generatedAt":"2026-10-27T22:24:17.763Z","title":"A directory traversal issue in the Utils/Unzip module in Microweber through 1.1.20 allows an authenticated attacker to gain remote code execution via the backup restore feature.","description":"A directory traversal issue in the Utils/Unzip module in Microweber through 1.1.20 allows an authenticated attacker to gain remote code execution via the backup restore feature. To exploit the vulnerability, an attacker must have the credentials of an administrative user, upload a maliciously constructed ZIP file with file paths including relative paths (i.e., ../../), move this file into the backup directory, and execute a restore on this file.","published":"2021-02-15T20:15:12.000Z","lastModified":"2026-06-17T03:10:18.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-22"],"affected":["microweber/microweber"],"epss":{"score":0.16611,"percentile":0.96994,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2021-05-10","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":49856,"kind":"exploit","title":"Microweber CMS 1.1.20 - Remote Code Execution (Authenticated)","url":"https://www.exploit-db.com/exploits/49856","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/49856.py","file":"exploits/php/webapps/49856.py","published":"2021-05-10","added":"2021-05-10","updated":"2021-05-10","author":"sl1nki","type":"webapps","platform":"php","port":null,"verified":false,"codes":["CVE-2020-28337"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 16.6%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/162514/Microweber-CMS-1.1.20-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://github.com/microweber/microweber/commit/777ee9c3e7519eb3672c79ac41066175b2001b50","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sl1nki.page/advisories/CVE-2020-28337","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sl1nki.page/blog/2021/02/01/microweber-zip-slip","tags":["Exploit","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/162514/Microweber-CMS-1.1.20-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/microweber/microweber/commit/777ee9c3e7519eb3672c79ac41066175b2001b50","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sl1nki.page/advisories/CVE-2020-28337","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sl1nki.page/blog/2021/02/01/microweber-zip-slip","tags":["Exploit","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-28337","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."}