How severe is CVE-2020-13932?

CVE-2020-13932 has a CVSS score of 6.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2020-13932?

CVE-2020-13932 affects the following packages: org.apache.activemq:apache-artemis (Maven). Ecosystems affected: Maven.

How do I fix CVE-2020-13932?

Update org.apache.activemq:apache-artemis to 2.14.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-13932 is resolved across your whole dependency graph.

How do I detect CVE-2020-13932 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.activemq:apache-artemis, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2020-13932 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2020-13932 actively exploited in the wild?

No public exploit code has been indexed for CVE-2020-13932 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2020-13932?

CVE-2020-13932 has an EPSS (Exploit Prediction Scoring System) score of 4.3%, placing it in the 91th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2020-13932?

CVE-2020-13932 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2020-13932 published, and has it been updated?

CVE-2020-13932 was published on July 20, 2020 and was last updated on July 8, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

MEDIUM severity

CVE-2020-13932 — apache-artemis

MEDIUM

CVE-2020-13932 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in org.apache.activemq:apache-artemis. A fix is available for org.apache.activemq:apache-artemis — see the affected versions and patch details below.

Cross-site Scripting (XSS) in Apache ActiveMQ Artemis

Also known asGHSA-3h2h-xqr2-2jp7

Published

Jul 20, 2020

Updated

Jul 8, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

4.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs91th percentile — riskier than 91% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2020-13932 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

☕org.apache.activemq:apache-artemis

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

In Apache ActiveMQ Artemis 2.5.0 to 2.13.0, a specially crafted MQTT packet which has an XSS payload as client-id or topic name can exploit this vulnerability. The XSS payload is being injected into the admin console's browser. The XSS payload is triggered in the diagram plugin; queue node and the info section.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.activemq:apache-artemis`	≥ 2.5.0&&< 2.14.0	2.14.0`org.apache.activemq:apache-artemis:2.14.0`

Affected Products

1 product · 1 configurations

Application

artemisapache

≥ 2.5.0 && ≤ 2.13.0

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.activemq:apache-artemis, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.activemq:apache-artemis to 2.14.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-13932 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

Product	Fixed in	Advisory
Red Hat AMQ	`mqtt-client`	RHSA-2020:5365

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2020-13932 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

6.1/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

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

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No known public exploit tooling found.

Timeline

Disclosed

Jul 20, 2020

Last updated

Jul 8, 2026

Identifiers

CVE-2020-13932

GHSA-3h2h-xqr2-2jp7

References

Advisoryactivemq.apache.org Advisorynvd.nist.gov Weblists.apache.org Weblists.apache.org Weblists.apache.org Weblists.apache.org Weblists.apache.org Weblists.apache.org

Related vulnerabilities

Also affects apache-artemis

This CVE is medium severity; 1 of 1 other CVE affecting apache-artemis is rated as high or higher (top: high).

CVE-2021-26117

Same weakness: CWE-79

This CVE is medium severity; 7 of 7 other CVEs with CWE-79 are rated as high or higher (top: high).

CVE-2026-91127CVE-2026-77606CVE-2026-84992CVE-2026-77608CVE-2026-77607GHSA-9rcc-pmj8-ffhrCVE-2026-77616Browse all CWE-79

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedJul 8, 2026