CVE-2020-2119Network attack vector

Client secret exposure via plaintext configuration response

Published Feb 12, 2020 · Updated Aug 4, 2024

Credential exposure in Jenkins Microsoft Entra ID Plugin 1.1.2 and earlier allows attackers to read a client secret from its configuration form. The global configuration form places the stored client secret into the browser response as plaintext instead of an encrypted value. Exposure requires an administrator to load the form and a browser extension, cross-site scripting flaw, or similar page-reading capability to capture the secret.

CVSS severity3.1
Low
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Jenkins Microsoft Entra ID Plugin 1.1.2 and earlier allows attackers to read a client secret from its configuration form. The global configuration form places the stored client secret into the browser response as plaintext instead of an encrypted value. Exposure requires an administrator to load the form and a browser extension, cross-site scripting flaw, or similar page-reading capability to capture the secret.

The record

CVE
CVE-2020-2119
Published
Feb 12, 2020
Updated
Aug 4, 2024
Vendor
Jenkins Project
Product
Microsoft Entra ID (previously Azure AD) Plugin
Classifications
CWE-256, CWE-522, T1555.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 12, 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 <=1.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jenkins Project · Microsoft Entra ID (previously Azure AD) Pluginversion=unspecified <=1.1.2

Published CVSS scores

3.1GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

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-256Plaintext Storage of a Password
CWE-522Insufficiently Protected Credentials
T1555.003Credentials from Web Browsers

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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