{"id":"CVE-2021-40875","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-40875","generatedAt":"2026-11-05T01:03:22.738Z","title":"Improper Access Control in Gurock TestRail versions < 7.2.0.3014 resulted in sensitive information exposure.","description":"Improper Access Control in Gurock TestRail versions < 7.2.0.3014 resulted in sensitive information exposure. A threat actor can access the /files.md5 file on the client side of a Gurock TestRail application, disclosing a full list of application files and the corresponding file paths. The corresponding file paths can be tested, and in some cases, result in the disclosure of hardcoded credentials, API keys, or other sensitive data.","published":"2021-09-22T15:15:10.000Z","lastModified":"2026-06-17T04:07:35.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-425"],"affected":["gurock/testrail"],"epss":{"score":0.47486,"percentile":0.98844,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2021-09-23","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":50320,"kind":"exploit","title":"Gurock Testrail 7.2.0.3014 - 'files.md5' Improper Access Control","url":"https://www.exploit-db.com/exploits/50320","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/webapps/50320.sh","file":"exploits/multiple/webapps/50320.sh","published":"2021-09-23","added":"2021-09-23","updated":"2021-09-23","author":"Sick Codes","type":"webapps","platform":"multiple","port":null,"verified":false,"codes":["CVE-2021-40875"],"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 47.5%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/164270/Gurock-Testrail-7.2.0.3014-Improper-Access-Control.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://github.com/SakuraSamuraii/derailed","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://johnjhacking.com/blog/cve-2021-40875/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.gurock.com/testrail/tour/enterprise-edition","tags":["Product","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/164270/Gurock-Testrail-7.2.0.3014-Improper-Access-Control.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/SakuraSamuraii/derailed","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://johnjhacking.com/blog/cve-2021-40875/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.gurock.com/testrail/tour/enterprise-edition","tags":["Product","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-40875","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."}