CVE Tools
Sign in

CVE-2026-1937

YayMail <= 4.3.2 - Missing Authorization to Authenticated (Shop Manager+) Arbitrary Options Update via 'yaymail_import_state' AJAX Action

Published: Feb 18, 2026Updated: Feb 18, 2026 Sources: CVE List NVDCWE-862
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.4%
Top 67.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

The YayMail – WooCommerce Email Customizer plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the `yaymail_import_state` AJAX action in all versions up to, and including, 4.3.2. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access to a vulnerable site.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-862

Affected Products

YayMail – WooCommerce Email Customizeryaycommerce
On-prem
Web & CMS Plugins / wordpress-plugin
yaycommercecommercialWeb & CMS Pluginsaka yay commerce, yaysmtp, yaymail

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Models/MigrationModel.php#L143
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/yaymail/trunk/src/Models/MigrationModel.php#L143
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3460087%40yaymail&new=3460087%40yaymail&sfp_email=&sfph_mail=
plugins.trac.wordpress.org
and 1 more references View all →

Timeline

Published
Feb 18, 2026
Last Updated
Feb 18, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-1937 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows