CVE-2020-15099

HighCVSS 8.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-20CWE-200

Affected software

No affected versions have been published.

Timeline

Published
Jul 29, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-15105.5An information disclosure vulnerability exists when the win32k component improperly provides kernel information. An attacker who successfullCVE-2020-151003.3In freewvs before 0.1.1, a user could create a large file that freewvs will try to read, which will terminate a scan process. This has been CVE-2020-151013.3In freewvs before 0.1.1, a directory structure of more than 1000 nested directories can interrupt a freewvs scan due to Python's recursion lCVE-2020-151026.5In PrestaShop Dashboard Productions before version 2.1.0, there is improper authorization which enables an attacker to change the configuratCVE-2020-151033.5In FreeRDP less than or equal to 2.1.2, an integer overflow exists due to missing input sanitation in rdpegfx channel. All FreeRDP clients aCVE-2020-151045.4In Envoy before versions 1.12.6, 1.13.4, 1.14.4, and 1.15.0 when validating TLS certificates, Envoy would incorrectly allow a wildcard DNS SCVE-2020-151055.4Django Two-Factor Authentication before 1.12, stores the user's password in clear text in the user session (base64-encoded). The password isCVE-2020-151066.5In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in decodeRecord method. The size of a record is stored in the length fCVE-2020-151075.3In openenclave before 0.10.0, enclaves that use x87 FPU operations are vulnerable to tampering by a malicious host application. By violatingCVE-2020-151087.1In glpi before 9.5.1, there is a SQL injection for all usages of "Clone" feature. This has been fixed in 9.5.1.CVE-2020-151095.3In solidus before versions 2.8.6, 2.9.6, and 2.10.2, there is an bility to change order address without triggering address validations. ThisCVE-2020-15117.8An elevation of privilege vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An
CVE-2020-15099: High severity, CVSS 8.1 | Vulnix