CVE-2016-9415

HIGH

Mybb Merge System < 1.8.7 - Improper Access Control

Title source: rule

Description

MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows allow remote attackers to overwrite arbitrary CSS files via vectors related to "style import."

References (4)

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/11/10/8

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/11/18/1

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/94396

[Patch, Release Notes, Vendor Advisory] https://blog.mybb.com/2016/10/17/mybb-1-8-8-merge-system-1-8-8-release/

Scores

CVSS v3 7.5

EPSS 0.0100

EPSS Percentile 76.7%

Attack Vector NETWORK

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

Classification

CWE

CWE-284

Status draft

Affected Products (2)

mybb/merge_system < 1.8.7

mybb/mybb < 1.8.7

Timeline

Published Jan 31, 2017

Tracked Since Feb 18, 2026