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CVE Record

CVE-2019-25141: Easy WP SMTP <= 1.3.9 - Missing Authorization to Arbitrary Options Update

The Easy WP SMTP plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 1.3.9. This is due to missing capability checks on the admin_init() function, in addition to insufficient input validation. This makes it possible for unauthenticated attackers to modify the plugins settings and arbitrary options on the site that can be used to inject new administrative user accounts.

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

CVE-2019-25141 lets an unauthenticated attacker change Easy WP SMTP settings and other WordPress options on affected sites. The reported impact includes creating new administrator accounts, which can mean full site takeover. This is critical for any WordPress site still running Easy WP SMTP 1.3.9 or older.

Executive priority

Prioritize remediation immediately for any affected public WordPress site. The business risk is full administrative compromise, content manipulation, credential reset abuse, email abuse, and downstream customer trust impact. Defer only if inventory proves the plugin is absent or upgraded.

Technical view

The issue is missing authorization in the plugin's admin_init() handling, combined with insufficient input validation. Network-reachable attackers need no account or user interaction. Sources describe arbitrary option updates and plugin setting modification, enabling administrative account injection on vulnerable WordPress installations.

Likely exposure

Internet-facing WordPress sites using Easy WP SMTP versions up to and including 1.3.9 are the relevant exposure. Sites without this plugin, or already upgraded beyond the vulnerable range, are not indicated as affected by the supplied evidence.

Exploitation context

The CVE is not listed as CISA KEV in the provided bundle. A cited Nintechnet post characterizes the issue as a critical 0day, but the provided evidence does not independently prove current active exploitation. Treat exposed legacy installations as urgent because exploitation requires no authentication.

Researcher notes

The supplied affected data is inconsistent, but the CVE description clearly identifies Easy WP SMTP up to and including 1.3.9. Base validation on observed plugin version, WordPress user integrity, and configuration drift. Do not assume broader product impact without vendor evidence.

Mitigation direction

  • Upgrade Easy WP SMTP beyond version 1.3.9 using WordPress or vendor guidance.
  • Disable or remove the plugin if upgrade status cannot be confirmed.
  • Review all WordPress administrator accounts for unexpected additions.
  • Reset credentials for suspicious accounts and affected site administrators.
  • Check vendor advisories before applying compensating controls.

Validation and detection

  • Inventory WordPress sites for Easy WP SMTP installation and version.
  • Confirm no production site runs version 1.3.9 or older.
  • Review plugin settings and WordPress options for unauthorized changes.
  • Audit administrator user creation around suspected exposure windows.
  • Check web and application logs for suspicious unauthenticated option-change activity.
Prepared
Confidence
high
Sources
6

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

cwe · medium confidence lookup

CWE-862: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2019-25141 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2019-25141Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
smubEasy WP SMTP – WordPress SMTP and Email Logs: Gmail, Office 365, Outlook, Custom SMTP, and more0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-862 · source CWE mapping

Missing Authorization

Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.