CVE-2020-13936

Velocity Sandbox Bypass

HIGH
8.8
CVSS Score
Published: March 10, 2021 at 08:00 AM UTC
Updated: June 17, 2026 at 02:53 AM UTC
16 products affected across 3 vendorsDebian LinuxCommunications Cloud Native Core PolicyBanking Platform

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Severity
HIGH8.8
Exploit prediction
EPSS 23%

Description

An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system commands with the same privileges as the account running the Servlet container. This applies to applications that allow untrusted users to upload/modify velocity templates running Apache Velocity Engine versions up to 2.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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