CorvusPay WooCommerce Payment Gateway <= 2.7.4 - Unauthenticated Stored Cross-Site Scripting via 'approval_code' Parameter

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Summary

CVECVE-2026-6939
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-11 07:16:46 UTC
Updated2026-07-11 07:16:46 UTC
DescriptionThe CorvusPay WooCommerce Payment Gateway plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'approval_code' parameter in all versions up to, and including, 2.7.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The unauthenticated REST endpoint POST /wp-json/corvuspay/success/ is registered with permission_callback set to __return_true, and although a signature validation step exists it only logs the result without halting execution, meaning an attacker can supply a completely arbitrary signature and have a malicious approval_code stored in the database unchallenged.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Corvusinfo CorvusPay WooCommerce Payment Gateway affected 2.7.4 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/corvuspay-woocommerce-integration/tags/2.7.3/includes... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/corvuspay-woocommerce-integration/tags/2.7.3/includes... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/corvuspay-woocommerce-integration/trunk/includes/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/corvuspay-woocommerce-integration/trunk/includes/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/corvuspay-woocommerce-integration/tags/2.7.2/includes... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/corvuspay-woocommerce-integration/tags/2.7.3/includes... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/corvuspay-woocommerce-integration/tags/2.7.2/includes... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/d8a81c01-495f-4861-b66f-00007... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/corvuspay-woocommerce-integration/tags/2.7.2/includes... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/corvuspay-woocommerce-integration/trunk/includes/clas... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Valatty (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-10T16:43:03.000ZDisclosed
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