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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-109937

Otter Blocks < 3.2.3 - Unauthenticated Open Redirect via Stripe Checkout BlockCVE-2026-109937

Answer in brief

CVE-2026-109937 records a Unknown severity vulnerability in Otter Blocks < 3.2.3 - Unauthenticated Open Redirect via Stripe Checkout Block. The current sources do not mark it as known exploited. The current feed maps Unknown/Otter Blocks (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 18, 2026Updated Oct 18, 2026Source checked Oct 18, 2026First seen by HOL Oct 18, 2026Material review Oct 18, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/Otter Blocks (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Unknown/Otter Blocksgeneric>=0 <3.2.33.2.3

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/Otter Blocks.
  2. 2Review the reported fix. Update Unknown/Otter Blocks to 3.2.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 18, 2026

Sources and claim methodology

  • Source referencewpscan.com
Upstream source description

The Otter Blocks WordPress plugin before 3.2.3 does not validate that a user-supplied return URL belongs to the site before using it to build the return destination of a Stripe Checkout session, allowing unauthenticated attackers to redirect victims who complete or cancel checkout to an arbitrary external URL.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Coder 2.0.0 before 2.34.8 Open Redirect via Workspace App ProxyAlso CWE-601
  • Tasty Recipes Lite 1.2 - 1.2.10 - Contributor+ Taxonomy Term Creation, Renaming and DeletionSame generic ecosystem
  • Salon Booking System 10.17 - 10.31.10 - Salon Staff+ Privilege Escalation to Administrator via Case-Insensitive User Meta KeySame generic ecosystem
  • Salon Booking System < 10.31.11 - Salon Staff+ Administrator Role Demotion via Customer EditorSame generic ecosystem
  • Salon Booking System < 10.31.11 - Salon Staff+ Stored XSS and SSRF via Salon REST 'image_url'Same generic ecosystem
  • Salon Booking System < 10.31.11 - Subscriber+ Coupon Code Disclosure via Discounts REST RouteSame generic ecosystem

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-601
Source
CVE List V5
Source checked
Oct 18, 2026
References
1 linked source
Open source record