{"id":"CVE-2020-15099","details":"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.","aliases":["BIT-typo3-2020-15099","GHSA-3x94-fv5h-5q2c"],"modified":"2026-03-15T14:37:54.133645Z","published":"2020-07-29T17:15:13.497Z","related":["GHSA-3x94-fv5h-5q2c"],"references":[{"type":"ADVISORY","url":"https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-3x94-fv5h-5q2c"},{"type":"ADVISORY","url":"https://typo3.org/security/advisory/typo3-core-sa-2020-007"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/typo3/typo3.cms","events":[{"introduced":"41235ff8e38c6f3401df03ae8beddd62d662c525"},{"fixed":"9c66a63af802a9a3da54e21dfd32a8e6acbc0e89"},{"introduced":"c91b70e450c52d29ffb08115fffbb7832b15a330"},{"fixed":"4ec29fe14dc3b6af2712c1279173ad669a5da26d"}],"database_specific":{"versions":[{"introduced":"9.0.0"},{"fixed":"9.5.20"},{"introduced":"10.0.0"},{"fixed":"10.4.6"}]}}],"versions":["v10.0.0","v10.1.0","v10.2.0","v10.3.0","v10.4.0","v10.4.1","v10.4.2","v10.4.3","v10.4.4","v10.4.5","v9.0.0","v9.1.0","v9.2.0","v9.3.0","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"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15099.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}