CVE-2026-109937CWE-601

CVE-2026-109937

Medium · published October 18, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
3.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00146 · 3.5th percentile
Weakness
CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
Published
2026-10-18T11:16Z
References (1)
https://wpscan.com/vulnerability/9765313d-c879-457f-851f-dab74b8d90a0/ · [email protected]
EPSS history
Timeline
  • 19 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 18 OCT 06:00Z
    Otter Blocks < 3.2.3 - Unauthenticated Open Redirect via Stripe Checkout Block
    cvelistv5
  • 18 OCT 06:00Z
    Otter Blocks < 3.2.3 - Unauthenticated Open Redirect via Stripe Checkout Block
    cvelistv5