CVE-2026-45120

Katalog CVE

CVSS 5.4 · Medium EPSS 0,30%

Kerentanan Authorization Bypass Through User-Controlled Key. Skor CVSS 3.1 5.4 (Medium) menurut github.com.

Deskripsi (NVD)

MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not verify private event status consistently, allowing users with viewing and moderation permissions to access and moderate private events. The private-event check used by get_events() in inc/functions_calendar.php and the event action is missing from the remaining calendar.php actions, despite the limited-access behavior described in inc/languages/english/calendar.lang.php. This issue is fixed in version 1.8.40.

Rincian

Terbit di NVD

18 Agustus 2026

Terakhir diubah

8 September 2026

Status NVD

Deferred

CVSS 3.1

5.4 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-639: Authorization Bypass Through User-Controlled Key

EPSS (30 hari)

0,30% peluang dieksploitasi; lebih tinggi dari 21,4% 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://github.com/mybb/mybb/commit/c077e6c29755187c4df78a1e674dd61bc55701b3
• https://github.com/mybb/mybb/releases/tag/mybb_1840
• https://github.com/mybb/mybb/security/advisories/GHSA-c2hm-g9w6-pv6x
• https://mybb.com/versions/1.8.40