Otter Blocks <= 3.1.4 - Improper Authorization to Unauthenticated Purchase Verification Bypass via Forged Cookie
| CVE | CVE-2026-2892 |
|---|---|
| CVSS | 7.5 (High) |
| Publicly Published | April 29, 2026 |
| Last Updated | April 30, 2026 |
| Researcher |
Drew Webber (mcdruid)
|
Description
The Otter Blocks plugin for WordPress is vulnerable to Purchase Verification Bypass in all versions up to, and including, 3.1.4. This is due to the 'get_customer_data' method relying on an unsigned 'o_stripe_data' cookie to determine Stripe product ownership for unauthenticated users. The 'check_purchase' method trusts this cookie data without performing server-side verification against the Stripe API for one-time 'payment' mode purchases. This makes it possible for unauthenticated attackers to bypass Stripe purchase-gated content visibility conditions by forging the 'o_stripe_data' cookie with a target product ID, which is publicly exposed in the checkout block's HTML source.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE
| Software Type | Plugin |
|---|---|
| Software Slug | otter-blocks (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 3.1.5, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE
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