CVE-2016-9420

9.8 CRITICAL

Published: January 31, 2017 Modified: May 13, 2026

Description

MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allow remote attackers to have unspecified impact via vectors related to "loose comparison false positives."

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/11/10/8

Source: cve@mitre.org

Mailing List Patch Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/11/18/1

Source: cve@mitre.org

Mailing List Patch Third Party Advisory

http://www.securityfocus.com/bid/94396

Source: cve@mitre.org

Third Party Advisory VDB Entry

https://blog.mybb.com/2016/10/17/mybb-1-8-8-merge-system-1-8-8-release/

Source: cve@mitre.org

Patch Release Notes Vendor Advisory

http://www.openwall.com/lists/oss-security/2016/11/10/8

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List Patch Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/11/18/1

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List Patch Third Party Advisory

http://www.securityfocus.com/bid/94396

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory VDB Entry

https://blog.mybb.com/2016/10/17/mybb-1-8-8-merge-system-1-8-8-release/

Source: af854a3a-2127-422b-91ae-364da2661108

Patch Release Notes Vendor Advisory

8 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.8 / 10.0

EPSS (Exploit Probability)

2.6%

83th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

mybb

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