CVE-2020-2229

MEDIUMNVD 5.45.4—Elevated

5.4

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the tooltip content of help icons, resulting in a stored cross-site scripting (XSS) vulnerability.

CVSS v3: 5.4
EG Score: 5.4(medium)
EPSS: 85.8%
KEV: Not listed

Published

August 12, 2020

Last Modified

November 21, 2024

References (6)

jenkinsci-cert@googlegroupshttp://packetstormsecurity.com/files/160443/Jenkins-2.235.3-Cross-Site-Scripting.html
jenkinsci-cert@googlegroupshttp://www.openwall.com/lists/oss-security/2020/08/12/4
jenkinsci-cert@googlegroupshttps://jenkins.io/security/advisory/2020-08-12/#SECURITY-1955
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/160443/Jenkins-2.235.3-Cross-Site-Scripting.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2020/08/12/4
af854a3a-2127-422b-91ae-364da2661108https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1955

Patch Availability(4)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	jenkins-0:2.235.5.1600415953-1.el7	2020-10-22	redhat
redhat	openshift4/ose-jenkins:v4.4.0-202009260441.p0	2020-10-13	redhat
redhat	jenkins-0:2.235.5.1600414805-1.el7	2020-09-30	redhat
redhat	jenkins-0:2.235.5.1600415514-1.el7	2020-09-23	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
org.jenkins-ci.main:jenkins-core	2.236 ... 2.251 (19 versions)	2.252	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-79Cross-site Scripting (XSS)

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 00:23 UTCEG score recompute
2026-05-27 00:23 UTCVendor advisory
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-49232
First seen Dec 11, 2020
Jenkins 2.235.3 - 'tooltip' Stored Cross-Site Scripting
Open source ↗

Frequently asked(5)

What is CVE-2020-2229?

CVE-2020-2229 is a medium vulnerability published on August 12, 2020. Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the tooltip content of help icons, resulting in a stored cross-site scripting (XSS) vulnerability.

When was CVE-2020-2229 disclosed?

CVE-2020-2229 was first published in the National Vulnerability Database on August 12, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-2229 actively exploited?

CVE-2020-2229 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-2229?

CVE-2020-2229 has a CVSS v3 base score of 5.4 (NVD).

How do I remediate CVE-2020-2229?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-2229, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-2229

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CVE-2020-2229

Published

Last Modified

References (6)

Patch Availability(4)

Affected Packages

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Publicly available exploits

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-2229?

Same vendor

Same CWE

CVE-2020-2229

📅 Published

🔄 Last Modified

🔗 References (6)

Patch Availability(4)

Affected Packages

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-2229?

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References (6)

Frequently asked(5)

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