CVE-2016-9415

HIGH

MyBB and MyBB Merge System < 1.8.8 - Arbitrary CSS File Overwrite via Style Import

Title source: llm
STIX 2.1

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)

Core 4
Core References
Patch, Release Notes, Vendor Advisory x_refsource_confirm
https://blog.mybb.com/2016/10/17/mybb-1-8-8-merge-system-1-8-8-release/
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/11/18/1
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/11/10/8
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/94396

Scores

CVSS v3 7.5
EPSS 0.0186
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

Details

CWE
CWE-284
Status published
Products (2)
mybb/merge_system < 1.8.7
mybb/mybb < 1.8.7
Published Jan 31, 2017
Tracked Since Feb 18, 2026