CVE-2020-13936

Velocity Engine vulnerability

CVSS

8.8

EPSS

22.7%

EPSS pct

97th

Exploited

No known

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 vendor

Apache

Affected product

Velocity Engine

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

2021-03-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 22.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2020-13936

Confirm whether Apache Velocity Engine is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-13936.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-13936

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-13936 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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