CRITICALCVSS v3.1 9.0Vulnerability

CVE-2026-128049

OpenMage Magento LTS before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 contains a cross-site request forgery vulnerability in the admin and storefront OAuth confirm and confirmSimple actions, which accept GET requests without form-key validation. Attackers holding OAuth consumer credentials can lure a logged-in administrator or customer to a crafted confirm URL that authorizes the attacker's request token, then exchange it at /oauth/token for a persistent REST API access token bound to the victim.

Properties

Severity
CRITICAL
Nvd fetched at
2026-11-14T00:40:25.638091+00:00
Epss score
0.00226
Cvss severity
CRITICAL
Cvss score
9
Retrieved at
2026-11-14T00:51:03+00:00
Last source
FIRST EPSS
Score
9
Cvss version
3.1
Cve id
CVE-2026-128049
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
First seen by Signal
2026-11-13T17:31:47+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Published at
2026-11-13T10:18:10.820
Last modified
2026-11-13T15:45:24.843
Epss percentile
0.13419

Related Entities (1)

HAS_WEAKNESS (1)

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CVE-2026-128049 (CVSS v3.1 9) — Ninja Signal Threat Intelligence | Ninja Signal