CVE-2016-9405

MEDIUM

MyBB <1.8.7 - XSS

Title source: llm

Description

Cross-site scripting (XSS) vulnerability in member validation in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

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/94395

[Patch, Release Notes, Vendor Advisory] https://blog.mybb.com/2016/03/11/mybb-1-8-7-merge-system-1-8-7-release/

Scores

CVSS v3 6.1

EPSS 0.0061

EPSS Percentile 69.4%

Attack Vector NETWORK

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

Classification

CWE

CWE-79

Status draft

Affected Products (2)

mybb/merge_system < 1.8.6

mybb/mybb < 1.8.6

Timeline

Published Jan 31, 2017

Tracked Since Feb 18, 2026