CVE-2026-81906

Katalog CVE

CVSS 6.3 · Medium EPSS 0,62%

Kerentanan Authentication Bypass Using an Alternate Path or Channel. Skor CVSS 4.0 6.3 (Medium) menurut CNA.

Deskripsi (NVD)

Concrete CMS OAuth callback login path prior to version 9.5.3 did not check whether an account was active or email-validated before establishing a session. A deactivated or unvalidated user with an existing OAuth binding could complete authentication and receive a session that was fully authenticated for the callback response, with the login recorded and login events dispatched. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori from Tenzai for reporting.

Rincian

Terbit di NVD

11 September 2026

Terakhir diubah

11 September 2026

Status NVD

Deferred

CVSS 4.0

6.3 (Medium), sumber CNA
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-288: Authentication Bypass Using an Alternate Path or Channel

EPSS (30 hari)

0,62% peluang dieksploitasi; lebih tinggi dari 48,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://documentation.concretecms.org/developers/introduction/version-history/953-release-notes