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OneTone Companion <= 1.1.1 — Open Mailer

5fd000dd-f75a-4ff0-bc71-20db878caca7Published · Updated

Action summary

Affected: ≤1.1.1No patch available

What to do until a fix ships
Watch plugin
Severity
Medium5.8
CVSS
5.8
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:C Scope
Changed
C:N Confidentiality
None
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-862 Missing Authorization
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

OneTone Companion onetone-companion

  1. Affected≤ 1.1.1
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 1.1.1. No fixed version has been released.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under OneTone Companion.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch OneTone Companion to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence.

The OneTone Companion plugin for WordPress suffers from an Open Mailer vulnerability in versions up to, and including, 1.1.1. This is due to a lack of authorization on the onetone_contact function which is reachable via nopriv AJAX call. This makes it possible for unauthenticated attackers to send emails with any content to any recipient.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in OneTone Companion

All 3
More vulnerabilities in OneTone Companion
SeverityVulnerabilityCVEPublished
Critical9.8Unauthenticated Settings Update
≤1.1.1No patch available
CVE-2019-17230
High7.2Stored Cross-Site Scripting
≤1.1.1No patch available
CVE-2019-17231

Same weakness (Missing Authorization)

All Missing Authorization
Other Missing Authorization vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 5.8

  2. Record last updated

Sources & licenses

Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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