WP-Invoice – Web Invoice and Billing <= 4.1.0 — Missing Authorization
CVE-2016-11008Published · Updated Action summary
Affected: <4.1.1Update to 4.1.1 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- 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?
WP-Invoice – Web Invoice and Billing wp-invoice
- Affected< 4.1.1
- Patched in4.1.1
Update to 4.1.1 or newer.
You are affected if you run < 4.1.1. Version 4.1.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP-Invoice – Web Invoice and Billing.
- 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
- Update to version 4.1.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WP-Invoice – Web Invoice and Billing to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to James Golovich.
The WP-Invoice – Web Invoice and Billing plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the wpi_gateway_base::process_payment() function when using the wpi_paypal payment gateway handler in versions up to, and including, 4.1.0. This makes it possible for unauthenticated attackers to update the meta data of previously invoiced users.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in WP-Invoice – Web Invoice and Billing
All 8| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Authenticated (Subscriber+) Information Exposure ≤4.3.1No patch available | CVE-2026-97183 | |
| High8.8 | Cross-Site Request Forgery to Stored Cross-Site Scripting ≤4.3.1Update to 4.3.2 | CVE-2022-1617 | |
| Medium5.3 | Missing Authorization ≤4.1.0Update to 4.1.1 | CVE-2016-11010 | |
| Medium5.3 | Missing Authorization <4.1.1Update to 4.1.1 | CVE-2016-11009 | |
| Medium6.5 | Unauthorized Settings Change ≤4.1.0Update to 4.1.1 | CVE-2016-11006 |
- Medium4.3Authenticated (Subscriber+) Information Exposure
≤4.3.1No patch available
- High8.8Cross-Site Request Forgery to Stored Cross-Site Scripting
≤4.3.1Update to 4.3.2
- Medium5.3Missing Authorization
≤4.1.0Update to 4.1.1
- Medium5.3Missing Authorization
<4.1.1Update to 4.1.1
- Medium6.5Unauthorized Settings Change
≤4.1.0Update to 4.1.1
Same weakness (Missing Authorization)
All Missing Authorization| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- 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
- 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
- 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
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 5.3
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.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.