{"id":"CVE-2021-27601","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-27601","generatedAt":"2026-10-28T00:32:50.597Z","title":"SAP NetWeaver AS Java (Applications based on HTMLB for Java) allows a basic-level authorized attacker to store a malicious file on the server.","description":"SAP NetWeaver AS Java (Applications based on HTMLB for Java) allows a basic-level authorized attacker to store a malicious file on the server. When a victim tries to open this file, it results in a Cross-Site Scripting (XSS) vulnerability and the attacker can read and modify data. However, the attacker does not have control over kind or degree.","published":"2021-04-13T19:15:15.000Z","lastModified":"2026-06-17T03:45:12.000Z","status":"Modified","sourceIdentifier":"cna@sap.com","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["sap/netweaver application server java"],"epss":{"score":0.00473,"percentile":0.40663,"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":"low","text":"Lower severity and a low EPSS score (0.47%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://launchpad.support.sap.com/#/notes/2963592","tags":["Permissions Required"],"source":"cna@sap.com"},{"url":"https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=573801649","tags":["Vendor Advisory"],"source":"cna@sap.com"},{"url":"https://launchpad.support.sap.com/#/notes/2963592","tags":["Permissions Required"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=573801649","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-27601","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."}