Stripe Payment Forms by WP Full Pay <= 8.4.3 - Missing Authorization to Unauthenticated Payment Record Manipulation via 'paymentIntentId' Parameter

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Summary

CVECVE-2026-12432
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-27 08:16:44 UTC
Updated2026-06-27 08:16:44 UTC
DescriptionThe WP Full Stripe Free plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 8.4.3 via the wpfs_update_failed_payment_status AJAX action. The handler is registered through both wp_ajax_ and wp_ajax_nopriv_ hooks and the underlying update_failed_payment_status() function performs no capability check, no nonce verification, and no logged-in check before calling $this->db->updatePaymentByEventId() with attacker-controlled POST parameters. This makes it possible for unauthenticated attackers who can obtain a valid Stripe Payment Intent ID for the target site (Payment Intent IDs are exposed to the customer browser during normal Stripe.js checkout flows) to manipulate payment records in the site's database, marking previously successful payments as failed and overwriting failure codes and messages with attacker-supplied values.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Themeisle Stripe Payment Forms By WP Full Pay Accept Credit Card Payments Donations Subscriptions affected 8.4.3 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/wp-full-stripe-free/tags/8.4.3/includes/wpfs-database... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-full-stripe-free/tags/8.4.1/includes/wpfs-customer... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-full-stripe-free/tags/8.4.3/includes/wpfs-customer... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-full-stripe-free/tags/8.4.3/includes/wpfs-customer... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-full-stripe-free/tags/8.4.1/includes/wpfs-database... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-full-stripe-free/tags/8.4.1/includes/wpfs-customer... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/c5811d13-0c5d-4a10-86a1-6318c... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/wp-full-stripe-free/tags/8.4.1/includes/wpfs-customer... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-full-stripe-free/tags/8.4.3/includes/wpfs-customer... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [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: Netwurm (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-06-16T18:27:19.000ZVendor Notified
CNA2026-06-26T18:04:03.000ZDisclosed
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