CVE-2026-4945
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.
Published:Sep 7, 2026
Last Modified:Sep 8, 2026
EPS:Sep 7, 2026
EPSS Score:0.00298
CVSS Score:5.3
Affected Products
Vendor
Product
Action
Vendor
Themeisle
Product
Otter Blocks – Gutenberg Blocks, Page Builder For Gutenberg Editor & Fse
Themeisle
Otter Blocks – Gutenberg Blocks, Page Builder For Gutenberg Editor & Fse
Vendor
Wordpress
Product
Wordpress
Wordpress
Wordpress
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
No CAPEC recorded yet
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
