Security readout for executives and security teams
Plain-English summary
This CVE can expose the SMTP password configured in Jenkins Email Extension Plugin 2.61 and older. The attacker must already control a Jenkins administrator's browser, such as through a malicious extension. Business risk centers on stolen email credentials, possible relay abuse, and loss of trust in Jenkins-generated notifications.
Executive priority
Prioritize remediation where Jenkins sends mail through privileged SMTP accounts or where administrator workstation controls are weak. This is not presented as actively exploited in the bundle, but credential exposure can create downstream fraud, phishing, and operational trust risks.
Technical view
Jenkins Email Extension Plugin 2.61 and older exposed the configured SMTP password through plugin code paths identified in global.groovy and ExtendedEmailPublisherDescriptor.java. The CVE describes a browser-control precondition involving a Jenkins administrator session. No CVSS, CWE, or detailed patch text is included in the provided bundle.
Likely exposure
Exposure is limited to Jenkins environments using Email Extension Plugin 2.61 or older with SMTP credentials configured. Risk increases where Jenkins administrators use unmanaged browsers, browser extensions, or shared workstations. The bundle does not identify other affected products or components.
Exploitation context
The source bundle does not show KEV listing or active exploitation evidence. The stated attack condition is control of a Jenkins administrator's web browser, which is a meaningful prerequisite. This is credential exposure, not a standalone remote compromise path based on the provided evidence.
Researcher notes
The provided evidence is sparse: no CVSS vector, CWE mapping, exploit report, or explicit fixed version text is included. Analysis should stay anchored to Jenkins Email Extension Plugin 2.61 and older, SMTP password exposure, and the administrator-browser-control precondition.
Mitigation direction
- Inventory Jenkins Email Extension Plugin versions across all controllers.
- Treat version 2.61 and older as affected.
- Review Jenkins advisory and plugin guidance for the fixed upgrade path.
- Rotate the Jenkins-configured SMTP password after upgrading or containment.
- Restrict and monitor browser extensions on Jenkins administrator workstations.
Validation and detection
- Confirm whether Email Extension Plugin is installed on each Jenkins controller.
- Check the installed plugin version against the 2.61-and-older affected range.
- Verify whether SMTP password settings are configured in Jenkins.
- Review administrative workstation controls for unmanaged or suspicious browser extensions.
- Check mail server logs for abnormal relay activity by the Jenkins SMTP account.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-1000176 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://jenkins.io/security/advisory/2018-04-16/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.