CVE-2026-73311

Katalog CVE

CVSS 7.4 · High EPSS 0,50%

Kerentanan Authentication Bypass by Capture-replay pada xenforo. Skor CVSS 3.1 7.4 (High) menurut vulncheck.com.

Deskripsi (NVD)

XenForo before 2.3.13 contains an OAuth2 authorization code reuse vulnerability that allows attackers to obtain unauthorized token pairs by submitting a previously used authorization code. Attackers can exploit the failure to invalidate or mark authorization codes as consumed after initial token issuance to receive an independent token pair for the same user and scopes, bypassing the single-use guarantee of the OAuth2 authorization code flow.

Rincian

Terbit di NVD

8 September 2026

Terakhir diubah

11 September 2026

Status NVD

Analyzed

CVSS 3.1

7.4 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-294: Authentication Bypass by Capture-replay

EPSS (30 hari)

0,50% peluang dieksploitasi; lebih tinggi dari 40,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bombobombone.github.io/posts/cve-2026-73311/ exploit · advisory pihak ketiga
• https://github.com/BomboBombone/CVE-2026-73311 exploit · advisory pihak ketiga
• https://www.vulncheck.com/advisories/xenforo-oauth2-authorization-code-reuse advisory pihak ketiga
• https://xenforo.com/community/threads/security-fixes-released-for-all-xenforo-and-media-gallery-versions-2-2-0... release notes
• https://xenforo.com/community/threads/xenforo-2-3-13-and-add-ons-released-includes-security-fixes.239857/ release notes