CVE-2016-9421

MEDIUM

Mybb Merge System < 1.8.7 - XSS

Title source: rule

Description

Cross-site scripting (XSS) vulnerability in the Users module in the Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 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/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 6.1

EPSS 0.0043

EPSS Percentile 62.2%

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 < 1.8.7

mybb/mybb < 1.8.7

Timeline

Published Jan 31, 2017

Tracked Since Feb 18, 2026