Skip to content

Unauthorized access to Class instance in Jinjava

Moderate severity GitHub Reviewed Published Feb 9, 2022 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

maven com.hubspot.jinjava:jinjava (Maven)

Affected versions

< 2.5.4

Patched versions

2.5.4

Description

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.

References

Published by the National Vulnerability Database Feb 19, 2021
Reviewed Mar 29, 2021
Published to the GitHub Advisory Database Feb 9, 2022
Last updated Feb 1, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.097%
(42nd percentile)

Weaknesses

CVE ID

CVE-2020-12668

GHSA ID

GHSA-2hjr-fg6c-v2h6

Source code

No known source code
Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.