{"id":"CVE-2021-41560","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-41560","generatedAt":"2026-11-05T00:48:28.760Z","title":"OpenCATS through 0.9.6 allows remote attackers to execute arbitrary code by uploading an executable file via lib/FileUtility.php.","description":"OpenCATS through 0.9.6 allows remote attackers to execute arbitrary code by uploading an executable file via lib/FileUtility.php.","published":"2021-12-15T07:15:07.000Z","lastModified":"2026-06-17T04:08:39.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","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-434"],"affected":["opencats/opencats"],"epss":{"score":0.11306,"percentile":0.95983,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.3%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://github.com/Nickguitar/RevCAT","tags":["Exploit","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/opencats/OpenCATS/commit/b1af3bde1f68bec1c703ad66a3e390f15ed8ebe1","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://youtu.be/isiDISag7CM","tags":["Broken Link","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/Nickguitar/RevCAT","tags":["Exploit","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/opencats/OpenCATS/commit/b1af3bde1f68bec1c703ad66a3e390f15ed8ebe1","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://youtu.be/isiDISag7CM","tags":["Broken Link","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-41560","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."}