CVE-2016-9403

Description

newreply.php in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allows remote attackers to have unspecified impact by leveraging a missing permission check.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 5.33% Top 15%
Vendor Advisory mybb.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/94395 vdb entry third party advisory
http://www.openwall.com/lists/oss-security/2016/11/18/1 mailing list third party advisory patch
http://www.openwall.com/lists/oss-security/2016/11/10/8 mailing list third party advisory patch
https://blog.mybb.com/2016/03/11/mybb-1-8-7-merge-system-1-8-7-release/ release notes patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-9403?
CVE-2016-9403 has been scored as a critical severity vulnerability.
How to fix CVE-2016-9403?
To fix CVE-2016-9403, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9403 being actively exploited in the wild?
It is possible that CVE-2016-9403 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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