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.
Published: 2026-10-18
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sun, 18 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 18 Oct 2026 07:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-601

Sun, 18 Oct 2026 06:30:00 +0000

Type Values Removed Values Added
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.
Title Otter Blocks < 3.2.3 - Unauthenticated Open Redirect via Stripe Checkout Block
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-10-18T11:12:31.318Z

Reserved: 2026-10-13T11:18:33.392Z

Link: CVE-2026-109937

cve-icon Vulnrichment

Updated: 2026-10-18T10:58:22.967Z

cve-icon NVD

Status : Received

Published: 2026-10-18T07:16:50.927

Modified: 2026-10-18T12:17:05.967

Link: CVE-2026-109937

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-18T14:00:14Z

Weaknesses
  • CWE-601

    URL Redirection to Untrusted Site ('Open Redirect')