CVE-2026-73316: xenforo

csirt@kutim:~/threat-intel/cve/CVE-2026-73316

CVSS 7.5 · High EPSS 0,27%

Kerentanan Insufficient Verification of Data Authenticity pada xenforo. Skor CVSS 3.1 7.5 (High) menurut vulncheck.com.

Deskripsi (NVD)

XenForo before 2.3.13 contains a payment replay vulnerability in the PayPal REST payment provider that allows attackers to process the same webhook payload multiple times by exploiting a missing duplicate transaction ID check. Attackers can replay a valid webhook payload to trigger duplicate payment events, resulting in repeated subscription activations and unauthorized account upgrades.

Rincian

Terbit di NVD: 8 September 2026
Terakhir diubah: 11 September 2026
Status NVD: Analyzed
CVSS 3.1: 7.5 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-345: Insufficient Verification of Data Authenticity
EPSS (30 hari): 0,27% peluang dieksploitasi; lebih tinggi dari 17,0% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
xenforo	xenforo	Semua versi sebelum 2.3.13

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://bombobombone.github.io/posts/cve-2026-73316/ exploit · advisory pihak ketiga
https://github.com/BomboBombone/CVE-2026-73316 exploit · advisory pihak ketiga
https://www.vulncheck.com/advisories/xenforo-payment-replay-via-paypal-rest-payment-provider 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

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.