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Easy Invoice – Invoice Generator, PDF Quotes & Payments <= 2.3.8 — Missing Authorization

CVE-2026-66676Published · Updated

Action summary

Affected: ≤2.3.8Update to 2.4.0 or newer

All remediation steps
Watch plugin
Severity
Medium5.3
CVSS
5.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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:U Scope
Unchanged
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)
0.3% chance in 30 days24th percentile
CISA KEV
Not listed
On this page8

Am I affected?

Easy Invoice – Invoice Generator, PDF Quotes & Payments easy-invoice

  1. Affected≤ 2.3.8
  2. Patched in2.4.0

Update to 2.4.0 or newer.

You are affected if you run ≤ 2.3.8. Version 2.4.0 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Easy Invoice – Invoice Generator, PDF Quotes & Payments.
  • 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. Update to version 2.4.0, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Easy Invoice – Invoice Generator, PDF Quotes & Payments to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Rahul Yadav.

The Easy Invoice – Invoice Generator, PDF Quotes & Payments plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 2.3.8. This is due to a missing capability check on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action.

Exploits & references

Proof-of-concept & detection

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

Advisories & patches

More in Easy Invoice – Invoice Generator, PDF Quotes & Payments

All 5
More vulnerabilities in Easy Invoice – Invoice Generator, PDF Quotes & Payments
SeverityVulnerabilityCVEPublished
Medium5.3Unauthenticated Arbitrary Quote Accept/Decline and Invoice Creation via easy_invoice_accept_quote / easy_invoice_decline_quote AJAX Actions
≤2.2.19Update to 2.2.20
CVE-2026-9021
Critical9.8Unauthenticated Remote Code Execution
≤2.1.19Update to 2.1.20
CVE-2026-48836
Medium6.6Authenticated (Administrator+) Local File Inclusion
≤2.1.4Update to 2.1.5
CVE-2025-66115
High7.2Unauthenticated Stored Cross-Site Scripting
≤2.0.9Update to 2.1.0
CVE-2025-6324

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 5.3

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
EPSS
Exploit Prediction Scoring System by FIRST.org.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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