JinJava Bypass through ForTag leads to Arbitrary Java Execution
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.9%
exploitation probability
0.9%top 42% of all CVEs
observed exploitation
nono source reports it
JinJava is a Java-based template engine based on django template syntax, adapted to render jinja templates. Prior to versions 2.7.6 and 2.8.3, JinJava is vulnerable to arbitrary Java execution via bypass through ForTag. This allows arbitrary Java class instantiation and file access bypassing built-in sandbox restrictions. This issue has been patched in versions 2.7.6 and 2.8.3.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
HubSpot · jinjavaReferences
https://github.com/HubSpot/jinjava/commit/3d02e504d8bbb13bf3fe019e9ca7b51dfce7a998https://github.com/HubSpot/jinjava/commit/c7328dce6030ac718f88974196035edafef24441https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.7.6https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.8.3https://github.com/HubSpot/jinjava/security/advisories/GHSA-gjx9-j8f8-7j74