CVE-2026-1937Network attack vector

Shop Manager-to-Administrator escalation via unchecked option import

Published Feb 18, 2026 · Updated Feb 18, 2026

Missing authorization in YayCommerce YayMail 4.3.2 and earlier allows remote authenticated users to escalate privileges through an AJAX request. The yaymail_import_state action accepts imported state from Shop Managers without a capability check and writes attacker-selected WordPress options. Shop Manager access is required; changing the registration setting and default role enables creation of an Administrator account.

CVSS severity7.2
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in YayCommerce YayMail 4.3.2 and earlier allows remote authenticated users to escalate privileges through an AJAX request. The yaymail_import_state action accepts imported state from Shop Managers without a capability check and writes attacker-selected WordPress options. Shop Manager access is required; changing the registration setting and default role enables creation of an Administrator account.

The record

CVE
CVE-2026-1937
Published
Feb 18, 2026
Updated
Feb 18, 2026
Vendor
YayCommerce
Product
YayMail
Classifications
CWE-862, T1136.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2026Record 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=* <=4.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

YayCommerce · YayMailversion=* <=4.3.2

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:H/UI:N/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1136.001Create Account: Local Account

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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