WPForms Plugin 1.9.1.6/1.9.2.3/1.10.0.1 on WordPress Transaction authorization

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k2.62-

Summaryinfo

A vulnerability was found in WPForms Plugin on WordPress. It has been declared as critical. The affected element is an unknown function of the component Transaction Handler. Such manipulation leads to authorization. This vulnerability is uniquely identified as CVE-2026-4986. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in WPForms Plugin on WordPress. Affected by this issue is some unknown processing of the component Transaction Handler. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The WPForms WordPress plugin before 1.10.0.5 does not verify the authenticity of incoming PayPal webhook events before processing them, allowing unauthenticated attackers to forge webhook payloads and manipulate the payment state of arbitrary transactions.

The weakness was disclosed by Sudhanshu Chauhan. The advisory is shared for download at wpscan.com. This vulnerability is handled as CVE-2026-4986 since 03/27/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.10.0.5 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WPForms Plugin 1.10.0.5

Timelineinfo

03/27/2026 CVE reserved
06/09/2026 +73 days Advisory disclosed
06/09/2026 +0 days VulDB entry created
06/09/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wpscan.com
Researcher: Sudhanshu Chauhan
Status: Confirmed

CVE: CVE-2026-4986 (🔒)
GCVE (CVE): GCVE-0-2026-4986
GCVE (VulDB): GCVE-100-369452

Entryinfo

Created: 06/09/2026 09:21
Changes: 06/09/2026 09:21 (56)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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