CVE-2026-49455.3MediumCWE-639

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

themeisle · Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE

Affected: themeisle Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.4%probability of exploitation in the next 30 days

33rd percentile

050100

Higher than 33% of scored CVEs

5.3MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

themeisle · Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSEup to and including 3.1.7

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Insecure Direct Object Reference
Vendor: themeisle
Published: September 2026
Band: Unlikely (under 1%), September 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-4945 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.