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CVE-2016-9421

Date: January 31, 2017

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.

Language: PHP

Severity Score

Related Resources (6)

https://nvd.nist.gov/vuln/detail/CVE-2016-9421
http://www.openwall.com/lists/oss-security/2016/11/10/8
https://blog.mybb.com/2016/10/17/mybb-1-8-8-merge-system-1-8-8-release/
http://www.securityfocus.com/bid/94396
http://www.openwall.com/lists/oss-security/2016/11/18/1
https://www.mend.io/vulnerability-database/CVE-2016-9421

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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