CVE-2018-2367
ABAP File Interface in, SAP BASIS, from 7.00 to 7.02, from 7.10 to 7.11, 7.30, 7.31, 7.40, from 7.50 to 7.52, allows an attacker to exploit insufficient validation of path information provided by users, thus characters representing "traverse to parent directory" are passed through to the file APIs.
Source: CVE-2018-2367