In Vanilla before 2.6.4, a flaw exists within the getSingleIndex function of the AddonManager class. The issue results in a require call using a crafted type value, leading to Directory Traversal with File Inclusion. An attacker can leverage this vulnerability to execute code under the context of the web server.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9889
Reference (s):
- https://github.com/vanilla/vanilla/compare/b043ae8 9f12b22
- https://github.com/vanilla/vanilla/pull/7840
- https://hackerone.com/reports/411140