{"id":"CVE-2020-17952","aliases":["EUVD-2021-1681","GHSA-ch3r-vp46-8g22"],"status":"published","title":"Code injection in topthink/think","description":"A remote code execution (RCE) vulnerability in /library/think/App.php of Twothink v2.0 allows attackers to execute arbitrary PHP code.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02474,"percentile":0.84649,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-74"],"published":"2021-07-26T19:48:20Z","modified":"2026-06-17T02:59:07Z","affected":[{"source":"ghsa","ecosystem":"Packagist","package":"topthink/think","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.0.9"}]}]},{"source":"osv","ecosystem":"Packagist","package":"topthink/think","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.0.9"}]}],"versions":["5.0","5.0-rc1","5.0-rc2","v5.0.1","v5.0.10","v5.0.11","v5.0.12","v5.0.13","v5.0.14","v5.0.15","v5.0.16","v5.0.18","v5.0.19","v5.0.2","v5.0.20","v5.0.22","v5.0.23","v5.0.24","v5.0.3","v5.0.4","v5.0.5","v5.0.6","v5.0.7","v5.0.8","v5.0.9","v5.1-beta.1","v5.1-rc.3","v5.1.0","v5.1.10","v5.1.11","v5.1.12","v5.1.13","v5.1.14","v5.1.15","v5.1.16","v5.1.17","v5.1.19","v5.1.20","v5.1.21","v5.1.22","v5.1.23","v5.1.24","v5.1.25","v5.1.26","v5.1.27","v5.1.28","v5.1.29","v5.1.31","v5.1.32","v5.1.34","v5.1.35","v5.1.36","v5.1.37","v5.1.38","v5.1.39","v5.1.40","v5.1.41","v5.1.5","v5.1.6","v5.1.8","v6.0.0","v6.0.0-rc3","v6.0.0-rc4","v6.0.0-rc5","v6.0.1","v6.0.2","v6.0.3","v6.0.4","v6.0.5","v6.0.6","v6.0.7","v6.0.9"]}],"products":[{"vendor":"twothink_project","product":"twothink"}],"references":[{"url":"https://github.com/twothink/twothink/issues/1","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-17952","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-ch3r-vp46-8g22"},{"url":"https://github.com/twothink/twothink","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-17952","description":"A remote code execution (RCE) vulnerability in /library/think/App.php of Twothink v2.0 allows attackers to execute arbitrary PHP code.","status":"published","published":"2021-07-26T19:48:20Z","modified":"2024-08-04T14:00:48.895Z","updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2021-1681","description":"A remote code execution (RCE) vulnerability in /library/think/App.php of Twothink v2.0 allows attackers to execute arbitrary PHP code.","status":"published","published":"2021-07-26T19:48:20Z","modified":"2024-08-04T14:00:48Z","updated_at":"2026-11-03T03:07:26.951665Z"}],"ghsa":[{"id":"GHSA-ch3r-vp46-8g22","title":"Code injection in topthink/think","description":"A remote code execution (RCE) vulnerability in /library/think/App.php of Twothink v2.0 allows attackers to execute arbitrary PHP code.","status":"published","published":"2021-08-09T20:39:52Z","modified":"2023-02-01T05:05:51Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:36:35.781528Z"}],"nvd":[{"id":"CVE-2020-17952","description":"A remote code execution (RCE) vulnerability in /library/think/App.php of Twothink v2.0 allows attackers to execute arbitrary PHP code.","status":"published","published":"2021-07-26T20:15:08.067Z","modified":"2026-06-17T02:59:07.66Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"GHSA-ch3r-vp46-8g22","title":"Code injection in topthink/think","description":"A remote code execution (RCE) vulnerability in /library/think/App.php of Twothink v2.0 allows attackers to execute arbitrary PHP code.","status":"published","published":"2021-08-09T20:39:52Z","modified":"2023-11-08T04:02:43.675611Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:46:44.927642Z"}]}}