CVE-2026-4945 MEDIUM

CVE-2026-4945: Otter Blocks <= 3.1.7 - Missing Authorization to Unauthenticated Purchase Verification Bypass

Vendor Themeisle
Product Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE
Weakness CWE-639 · IDOR
Published September 7, 2026
Last update September 8, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.1.7 via the 'watch_checkout' function due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to pay for a lower-cost product while obtaining entitlement for a premium product by manipulating the product_id parameter independently of the price_id parameter in the Stripe checkout URL.

Key dates

02Disclosure timeline

September 7, 2026 CVE published
September 8, 2026 Record updated

Related vulnerabilities

04Related CVE

CVE-2026-3235 WP Data Access – No-Code App Builder with Tables, Forms, Charts & Maps <= 5.5.68 - Unauthenticated Insecure Direct Object Reference to Data Access CVE-2026-10630 WP Courses LMS <= 3.2.29 - Insecure Direct Object Reference to Authenticated (Custom+) Sensitive Information Disclosure via 'resultID' Parameter CVE-2026-11900 Ad Inserter <= 2.8.16 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Post Content Disclosure via 'data' Shortcode Attribute CVE-2026-77998 Joomla Extension - miniorange.com - Unauthenticated Authentication Bypass via SAMLResponse Parameter in miniOrange SAML SSO < 11.0.2, SAML SP Single Sign On – Login with ADFS < 6.4, SAML SP Single Sign On – SAML SSO login with Google Apps < 6.4 CVE-2026-57680 WordPress Kirki plugin <= 6.0.11 - Insecure Direct Object References (IDOR) vulnerability