{"id":"CVE-2020-15099","aliases":["BIT-typo3-2020-15099","EUVD-2020-0533","GHSA-3x94-fv5h-5q2c"],"status":"published","title":"Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS","description":"In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, this allows the ability to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions. This has been patched in versions 9.5.20 and 10.4.6.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0179,"percentile":0.78519,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-200"],"published":"2020-07-29T16:15:15Z","modified":"2026-10-24T10:51:21Z","fixes":[{"ecosystem":"Packagist","package":"typo3/cms-core","fixed_in":["9.5.20","10.4.6"],"sources":["ghsa","osv"]},{"ecosystem":"Packagist","package":"typo3/cms","fixed_in":["10.4.6","9.5.20"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"typo3","fixed_in":["9.5.20","10.4.6"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0"},{"fixed":"9.5.20"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.4.6"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.4.6"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0"},{"fixed":"9.5.20"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"typo3","ranges":[{"type":"SEMVER","events":[{"introduced":"9.0.0"},{"fixed":"9.5.20"},{"introduced":"10.0.0"},{"fixed":"10.4.6"}]}]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0"},{"fixed":"9.5.20"}]}],"versions":["v9.0.0","v9.1.0","v9.2.0","v9.2.1","v9.3.0","v9.3.1","v9.3.2","v9.3.3","v9.4.0","v9.5.0","v9.5.1","v9.5.10","v9.5.11","v9.5.12","v9.5.13","v9.5.14","v9.5.15","v9.5.16","v9.5.17","v9.5.18","v9.5.19","v9.5.2","v9.5.3","v9.5.4","v9.5.5","v9.5.6","v9.5.7","v9.5.8","v9.5.9"]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.4.6"}]}],"versions":["v10.0.0","v10.1.0","v10.2.0","v10.2.1","v10.2.2","v10.3.0","v10.4.0","v10.4.1","v10.4.2","v10.4.3","v10.4.4","v10.4.5"]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.4.6"}]}],"versions":["v10.0.0","v10.1.0","v10.2.0","v10.2.1","v10.2.2","v10.3.0","v10.4.0","v10.4.1","v10.4.2","v10.4.3","v10.4.4","v10.4.5"]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0"},{"fixed":"9.5.20"}]}],"versions":["v9.0.0","v9.1.0","v9.2.0","v9.2.1","v9.3.0","v9.3.1","v9.3.2","v9.3.3","v9.4.0","v9.5.0","v9.5.1","v9.5.10","v9.5.11","v9.5.12","v9.5.13","v9.5.14","v9.5.15","v9.5.16","v9.5.17","v9.5.18","v9.5.19","v9.5.2","v9.5.3","v9.5.4","v9.5.5","v9.5.6","v9.5.7","v9.5.8","v9.5.9"]}],"products":[{"vendor":"typo3","product":"typo3"},{"vendor":"typo3","product":"typo3 cms"}],"references":[{"url":"https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-3x94-fv5h-5q2c","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","web","advisory"]},{"url":"https://typo3.org/security/advisory/typo3-core-sa-2020-007","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","web","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15099","tags":["advisory"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-15099.yaml","tags":["web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-15099.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-3x94-fv5h-5q2c"},{"url":"https://github.com/TYPO3/TYPO3.CMS","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-15099","title":"Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS","description":"In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, this allows the ability to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions. This has been patched in versions 9.5.20 and 10.4.6.","status":"published","published":"2020-07-29T16:15:15Z","modified":"2024-08-04T13:08:22.299Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-200","CWE-20"],"updated_at":"2026-11-02T14:35:49.879248Z"}],"euvd":[{"id":"EUVD-2020-0533","description":"In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, this allows the ability to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions. This has been patched in versions 9.5.20 and 10.4.6.","status":"published","published":"2020-07-29T16:15:15Z","modified":"2024-08-04T13:08:22Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:07:33.100327Z"}],"ghsa":[{"id":"GHSA-3x94-fv5h-5q2c","title":"Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS","description":"\u003e ### Meta\n\u003e * CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C` (7.5)\n\u003e * CWE-20, CWE-200\n\n### Problem\nIn case an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal _encryptionKey_ was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch _typo3conf/LocalConfiguration.php_ which again contains the _encryptionKey_ as well as credentials of the database management system being used.\n\nIn case a database server is directly accessible either via internet or in a shared hosting network, this allows to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions.\n\n### Solution\nUpdate to TYPO3 versions 9.5.20 or 10.4.6 that fix the problem described.\n\n### Credits\nThanks to TYPO3 security team member Oliver Hader who reported and fixed the issue.\n\n### References\n* [TYPO3-CORE-SA-2020-007](https://typo3.org/security/advisory/typo3-core-sa-2020-007)","status":"published","published":"2020-07-29T16:15:32Z","modified":"2024-02-15T05:06:48Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20","CWE-200"],"updated_at":"2026-11-02T14:37:38.20753Z"}],"nvd":[{"id":"CVE-2020-15099","description":"In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, this allows the ability to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions. This has been patched in versions 9.5.20 and 10.4.6.","status":"published","published":"2020-07-29T17:15:13.497Z","modified":"2026-06-17T02:56:03.123Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20","CWE-200"],"updated_at":"2026-11-02T14:06:10.994748Z"}],"osv":[{"id":"CVE-2020-15099","description":"In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, this allows the ability to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions. This has been patched in versions 9.5.20 and 10.4.6.","status":"published","published":"2020-07-29T17:15:13.497Z","modified":"2026-10-24T10:51:21.868702646Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:14.418339Z"},{"id":"GHSA-3x94-fv5h-5q2c","title":"Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS","description":"\u003e ### Meta\n\u003e * CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C` (7.5)\n\u003e * CWE-20, CWE-200\n\n### Problem\nIn case an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal _encryptionKey_ was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch _typo3conf/LocalConfiguration.php_ which again contains the _encryptionKey_ as well as credentials of the database management system being used.\n\nIn case a database server is directly accessible either via internet or in a shared hosting network, this allows to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions.\n\n### Solution\nUpdate to TYPO3 versions 9.5.20 or 10.4.6 that fix the problem described.\n\n### Credits\nThanks to TYPO3 security team member Oliver Hader who reported and fixed the issue.\n\n### References\n* [TYPO3-CORE-SA-2020-007](https://typo3.org/security/advisory/typo3-core-sa-2020-007)","status":"published","published":"2020-07-29T16:15:32Z","modified":"2026-07-08T06:28:13.715151169Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20","CWE-200"],"updated_at":"2026-11-02T15:46:36.092962Z"},{"id":"BIT-typo3-2020-15099","description":"In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, this allows the ability to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions. This has been patched in versions 9.5.20 and 10.4.6.","status":"published","published":"2024-03-06T11:11:45.19Z","modified":"2024-03-06T11:25:28.861Z","updated_at":"2026-11-02T15:28:36.104787Z"}]}}