CVE-2020-2090Network attack vector

Attacker-directed connections via unprotected form validation

Published Jan 15, 2020 · Updated Aug 4, 2024

Cross-site request forgery in Jenkins Amazon EC2 Plugin 1.47 and earlier allows remote attackers to make Jenkins connect to a chosen URL. The affected form-validation methods accept GET requests without requiring POST, enabling a crafted cross-origin request to supply an AWS-region URL and credentials ID. A logged-in Jenkins user's interaction and a valid credentials ID obtained separately are required; the confirmed result is an outbound connection.

CVSS severity8.8
High
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Jenkins Amazon EC2 Plugin 1.47 and earlier allows remote attackers to make Jenkins connect to a chosen URL. The affected form-validation methods accept GET requests without requiring POST, enabling a crafted cross-origin request to supply an AWS-region URL and credentials ID. A logged-in Jenkins user's interaction and a valid credentials ID obtained separately are required; the confirmed result is an outbound connection.

The record

CVE
CVE-2020-2090
Published
Jan 15, 2020
Updated
Aug 4, 2024
Vendor
Jenkins Project
Product
Jenkins Amazon EC2 Plugin
Classifications
CWE-352, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=1.47

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jenkins Project · Jenkins Amazon EC2 Pluginversion=unspecified <=1.47

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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