9

CVE-2020-13936: Velocity Sandbox Bypass

Modified
AliasesMGASA-2021-0183SUSE-SU-2021:0800-1SUSE-SU-2025:0719-1
Published 10-03-2021Last modified 13-02-2025

Vulnerability summary

CVE-2020-13936 is a high (CVSS 9.0) vulnerability in apache software foundation apache velocity engine. EPSS estimates a 22.71% chance of exploitation in the next 30 days, higher than 97.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
9.0/10
010
High · v2.0 (NVD)
EPSS score
22.71%
0%100%
High · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 2
RHSA-2021:2046RHSA-2021:2047RHSA-2021:2048RHSA-2021:3656RHSA-2021:3658RHSA-2025:1746

Timeline

  1. 10-03-2021
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

22.71%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

No change 0.00 pp

From 22.71% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse125 products
  • maven-doxia-sitetools&distro=SUSE Enterprise Storage 7.1< 2.0.0-150200.3.18.3
  • maven-doxia-sitetools&distro=SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS< 2.0.0-150200.3.18.3
  • maven-doxia-sitetools&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 2.0.0-150200.3.18.3
  • maven-doxia-sitetools&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 2.0.0-150200.3.18.3
  • maven-doxia-sitetools&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 2.0.0-150200.3.18.3
Opensuse21 products
  • maven-dependency-analyzer&distro=openSUSE Leap 15.6< 1.15.1-150200.3.10.3
  • maven-dependency-plugin&distro=openSUSE Leap 15.6< 3.8.1-150200.3.10.2
  • maven-doxia-sitetools&distro=openSUSE Leap 15.6< 2.0.0-150200.3.18.3
  • maven-doxia&distro=openSUSE Leap 15.6< 2.0.0-150200.4.18.11
  • maven-invoker-plugin&distro=openSUSE Leap 15.6< 3.8.1-150200.3.6.2
Oracle13 products
Chainguard3 products
  • hadoop-fips-3.3.6All versions (No fix recorded)
  • hadoop-fips-3.4.2All versions (No fix recorded)
  • hadoop-fips-3.5All versions (No fix recorded)
Apache2 products
Debian2 products
Mageia2 products
  • velocity< 1.7-22.1.mga7
  • velocity< 1.7-33.1.mga8
Org.apache.velocity2 products
  • velocity≤ 1.7
  • velocity-engine-parent< 2.3
Apache software foundation1 product
Ubuntu1 product
  • velocity< 1.7-4ubuntu0.1~esm1 | < 1.7-5ubuntu0.18.04.1~esm1 | < 1.7-5+deb9u1build0.20.04.1

10 vendors · 172 products

References

55 links
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