CVE-2026-4945

Otter Blocks <= 3.1.7 - Missing Authorization to Unauthenticated Purchase Verification Bypass

Published Sep 7, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Themeisle
Themeisle otter Blocks – Gutenberg Blocks, Page Builder For Gutenberg Editor & Fse
Wordpress
Wordpress wordpress
Vendors & Products Themeisle
Themeisle otter Blocks – Gutenberg Blocks, Page Builder For Gutenberg Editor & Fse
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Description 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.
Title Otter Blocks <= 3.1.7 - Missing Authorization to Unauthenticated Purchase Verification Bypass
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Sep 8, 2026, 1:57 PM
Reserved
Mar 27, 2026, 12:20 AM
Status
Deferred
Published
Sep 7, 2026, 1:20 PM
Modified
Sep 8, 2026, 2:17 PM