Jinjava before 2.5.4 allow access to arbitrary classes by calling Java methods on objects passed into a Jinjava context. This could allow for abuse of the application class loader, including Arbitrary File Disclosure.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12668
Reference (s):
- https://github.com/HubSpot/jinjava/compare/jinjava-2.5.3 jinjava-2.5.4
- https://github.com/HubSpot/jinjava/pull/426/commits/5dfa5b87318744a4d020b66d5f7747acc36b213b
- https://github.com/HubSpot/jinjava/pull/435/commits/1b9aaa4b420c58b4a301cf4b7d26207f1c8d1165
- https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.5.4
- https://securitylab.github.com/advisories/GHSL-2020-072-hubspot_jinjava