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CVE-2026-90987— Easy PayPal & Stripe Buy Now Button 1.8 - 2.0.5 - Unauthenticated Payment Amount Manipulation via Client-Supplied Price

Quick assessment

Affected
Unknown Easy PayPal & Stripe Buy Now Button
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Easy PayPal & Stripe Buy Now Button 插件（版本低于 2.0.6）未在服务器端计算支付金额，而是直接使用客户端提供的字段。因此，未认证的攻击者可以将购买价格设置为任意较低的金额。

CVSS 5.3 · Medium EPSS 0.24% · P13

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Easy PayPal & Stripe Buy Now Button 1.8< 2.0.6 affected
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I. Basic Information for CVE-2026-90987

Vulnerability Information
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Vulnerability Title
Easy PayPal & Stripe Buy Now Button 1.8 - 2.0.5 - Unauthenticated Payment Amount Manipulation via Client-Supplied Price
Source: CVE Program / CVE List V5
Vulnerability Description
The Easy PayPal & Stripe Buy Now Button WordPress plugin before 2.0.6 does not derive the payment amount on the server, taking it from a client-supplied field, so an unauthenticated attacker sets an arbitrary lower price for a purchase.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Easy PayPal & Stripe Buy Now Button 1.8 ~ 2.0.6 -

II. Public POCs for CVE-2026-90987

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III. Intelligence Information for CVE-2026-90987

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Other References for CVE-2026-90987 (1)

Same Patch Batch · Unknown · 2026-10-02 · 22 CVEs total

CVE-2026-84740 6.5 MEDIUM The Events Calendar 6.12.0 - 6.17.5 - Unauthenticated Arbitrary Shortcode Execution via 'v
CVE-2026-19856 6.5 MEDIUM All in One SEO < 5.0.2.1 - Unauthenticated Arbitrary Shortcode Execution via Search Query
CVE-2026-92924 5.4 MEDIUM Unlimited Elements For Elementor < 2.0.21 - Subscriber+ Arbitrary Shortcode Execution via
CVE-2026-85005 5.4 MEDIUM Popup Maker WP 1.2.2.1 - 1.4.5 - Subscriber+ Zero-Argument PHP Callable Invocation via Mis
CVE-2026-91020 5.3 MEDIUM WebToffee Gift Cards for WooCommerce < 1.3.1 - Unauthenticated Gift Card Amount Manipulati
CVE-2026-90952 5.3 MEDIUM WP Edit Password Protected 2.0.0 - 2.0.6 - Unauthenticated Site-Wide Access Mode Bypass vi
CVE-2026-13413 5.3 MEDIUM CMP - Coming Soon & Maintenance < 4.1.20 - Unauthenticated Maintenance Mode Bypass via Log
CVE-2026-97219 4.3 MEDIUM MStore API 4.21.1 - 4.22.0 - Subscriber+ Payment Bypass via 'status' Parameter
CVE-2026-79618 4.3 MEDIUM WP User Frontend < 4.3.12 - Subscriber+ Post Creation via Subscription-Gated Form
CVE-2026-1661 4.3 MEDIUM WP Mail Logging < 1.17.0 - Unauthenticated HTML Injection
CVE-2026-81740 Paytm Payment Gateway < 2.8.9 - Unauthenticated Order Status Manipulation via Payment Call
CVE-2026-85004 Popup Maker WP <= 1.4.5 - Subscriber+ Missing Authorization via sgpm_connect
CVE-2026-91828 OMGF < 6.3.11 - Unauthenticated DoS via do_optimize
CVE-2026-90988 Request a Quote <= 2.5.6 - Unauthenticated Quote Request Contact Record Disclosure via emd
CVE-2026-85016 Unlimited Elements For Elementor < 2.0.21 - Contributor+ Stored XSS via Icon Library Param
CVE-2026-13718 Tabs Responsive <= 2.5 - Shop Manager+ Stored XSS via WooCommerce Product Tab Content
CVE-2026-91022 Motors < 1.4.124 - Listing Manager+ Stored XSS via Badge Color
CVE-2026-91023 Motors – Car Dealership & Classified Listings < 1.4.124 - Subscriber+ Cross-User Post Meta
CVE-2026-94298 BuildKit < 1.0.29 - Contributor+ Stored SQLi via list_content Parameter
CVE-2026-97318 Giveaways and Contests by RafflePress < 1.12.27 - Unauthenticated Stored Open Redirect via

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Easy PayPal & Stripe Buy Now Button
Same vendor: Unknown

V. Comments for CVE-2026-90987

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