How severe is CVE-2020-2304?

CVE-2020-2304 has a CVSS score of 6.5/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2020-2304?

CVE-2020-2304 affects the following packages: org.jenkins-ci.plugins:subversion (Maven). Ecosystems affected: Maven.

How do I fix CVE-2020-2304?

Update org.jenkins-ci.plugins:subversion to 2.13.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-2304 is resolved across your whole dependency graph.

How do I detect CVE-2020-2304 in my Maven dependencies?

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

How do I mitigate CVE-2020-2304 if there is no patch (or I can't update yet)?

Restrict outbound requests from the affected component to an allowlist of hosts, block access to link-local and internal address ranges at the network layer, and require authentication on internal services so a forged request cannot reach them unauthenticated.

Is CVE-2020-2304 actively exploited in the wild?

No public exploit code has been indexed for CVE-2020-2304 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-2020-2304?

CVE-2020-2304 has an EPSS (Exploit Prediction Scoring System) score of 1.5%, placing it in the 75th 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.

When was CVE-2020-2304 published, and has it been updated?

CVE-2020-2304 was published on November 4, 2020 and was last updated on October 24, 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-2020-2304 — subversion

MEDIUMFix: jenkinsci/subversion-plugin@83f2408

CVE-2020-2304 is a medium-severity (CVSS 6.5) vulnerability in org.jenkins-ci.plugins:subversion. A fix is available for org.jenkins-ci.plugins:subversion — see the affected versions and patch details below.

XXE vulnerability in Jenkins Subversion Plugin

Also known asGHSA-vp5f-8jgw-j53c

Published

Nov 4, 2020

Updated

Oct 24, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs75th percentile — riskier than 75% of all scored CVEsHighest risk

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

☕org.jenkins-ci.plugins:subversion

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

Jenkins Subversion Plugin 2.13.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers able to control an agent process to have Jenkins parse a crafted changelog file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

Jenkins Subversion Plugin 2.13.2 disables external entity resolution for its XML parser.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.jenkins-ci.plugins:subversion`	all versions	2.13.2`org.jenkins-ci.plugins:subversion:2.13.2`

Affected Products

1 product · 1 configurations

Application

subversionjenkins

≤ 2.13.1

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.jenkins-ci.plugins:subversion, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jenkins-ci.plugins:subversion to 2.13.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-2304 is resolved across your whole dependency graph.
Workarounds
Restrict outbound requests from the affected component to an allowlist of hosts, block access to link-local and internal address ranges at the network layer, and require authentication on internal services so a forged request cannot reach them unauthenticated.

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 HatImportant

Workaround published by Red Hat

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.

Source: Red Hat security advisory for CVE-2020-2304 (CC BY 4.0)

Product	Fixed in	Advisory
Red Hat OpenShift Container Platform 3.11	`jenkins-2-plugins-0:3.11.1612862361-1.el7`	RHSA-2021:0637
Red Hat OpenShift Container Platform 4.4	`jenkins-2-plugins-0:4.4.1611203637-1.el7`	RHSA-2021:0282
Red Hat OpenShift Container Platform 4.5	`jenkins-2-plugins-0:4.5.1610108899-1.el7`	RHSA-2021:0034
Red Hat OpenShift Container Platform 4.6	`jenkins-2-plugins-0:4.6.1608634578-1.el7`	RHSA-2021:0038

Frequently Asked Questions

Jenkins Subversion Plugin 2.13.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks. This allows attackers able to control an agent process to have Jenkins parse a crafted changelog file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. Jenkins Subversion Plugin 2.13.2 disables external entity resolution for its XML parser.

O3 Security · Impact-Aware SCA

Is CVE-2020-2304 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

6.5/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Raw vector

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

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

Timeline

Disclosed

Nov 4, 2020

Last updated

Oct 24, 2026

Identifiers

CVE-2020-2304

GHSA-vp5f-8jgw-j53c

References

Advisoryopenwall.com Advisoryjenkins.io · 2020 11 04 Advisorynvd.nist.gov · CVE 2020 2304 Webgithub.com · 83f24081114a465f88d44fc84180d4d9d02c705d Packagegithub.com · subversion plugin

Related vulnerabilities

This CVE is medium severity, in line with the other 7 CVEs affecting subversion.

CVE-2021-21698CVE-2020-2111CVE-2013-6372CVE-2017-1000085CVE-2018-1000111CVE-2022-29048CVE-2022-29046

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 24, 2026

CVE-2020-2304 — subversion

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Fixing This On Your OS

Frequently Asked Questions

Is CVE-2020-2304 in your dependencies?