Detections
Analytics

CVE-2016-9412

critical

Description

MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allow attackers to have unspecified impact via vectors related to low adminsid and sid entropy.

References

http://www.securityfocus.com/bid/94395

http://www.openwall.com/lists/oss-security/2016/11/18/1

http://www.openwall.com/lists/oss-security/2016/11/10/8

https://blog.mybb.com/2016/03/11/mybb-1-8-7-merge-system-1-8-7-release/

Details

Source: Mitre, NVD

Published: 2017-01-31

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.02853