meIsle Otter Blocks Plugin up to 3.1.7 on WordPress watch_checkout product_id/price_id resource injection

Summaryinfo

A vulnerability categorized as problematic has been discovered in meIsle Otter Blocks Plugin up to 3.1.7. Affected by this issue is the function watch_checkout. Such manipulation of the argument product_id/price_id leads to resource injection. This vulnerability is traded as CVE-2026-4945. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in meIsle Otter Blocks Plugin up to 3.1.7. It has been rated as problematic. Affected by this issue is the function watch_checkout. The manipulation of the argument product_id/price_id with an unknown input leads to a resource injection vulnerability. Using CWE to declare the problem leads to CWE-99. The product receives input from an upstream component, but it does not restrict or incorrectly restricts the input before it is used as an identifier for a resource that may be outside the intended sphere of control. Impacted is integrity. CVE summarizes:

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.

The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-4945 since 03/27/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/07/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• meIsle

Name

• Otter Blocks Plugin

Version

• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.1.6
• 3.1.7

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Threat Intelligenceinfo

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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