csirt@kutim:~/threat-intel/cve/CVE-2026-53595

Katalog CVE

CVSS 9.4 · Critical EPSS 1,9%

Kerentanan Improper Handling of Case Sensitivity. Skor CVSS 3.1 9.4 (Critical) menurut github.com.

Deskripsi (NVD)

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the public endpoint `POST /user-setup/{hash}/{invite_sent_at}` (`OpenController@userSetupSave`) selects the target account solely by its `invite_hash` column, then overwrites that account's email and password and logs in as it. No authentication, cookie, or prior session is required. After a user activates, FreeScout sets `invite_hash` to the empty string. On MySQL and MariaDB, `VARCHAR` equality ignores trailing spaces, so a single URL-encoded space (`%20`) matches the stored empty string and selects the lowest-id activated user. The expiry guard decrypts `invite_sent_at` with the target's password hash, but `Helper::decrypt` returns its raw input unchanged when decryption fails. A plaintext numeric value such as `9999999999` therefore passes the time-to-live check without any secret. The result is that an anonymous attacker sets the email and password of the lowest-id activated FreeScout account (a support agent, or an administrator if one was added by invitation) and authenticates as that account. Version 1.8.224 contains a fix.

Rincian

Terbit di NVD
20 Juli 2026
Terakhir diubah
21 Juli 2026
Status NVD
Deferred
CVSS 3.1
9.4 (Critical), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-178: Improper Handling of Case Sensitivity
CWE-287: Improper Authentication
CWE-640: Weak Password Recovery Mechanism for Forgotten Password
EPSS (30 hari)
1,9% peluang dieksploitasi; lebih tinggi dari 79,6% 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

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.