CVE-2016-9409

Name: CVE-2016-9409
Creator: NVD / NIST
Published: 2017-01-31T22:59:01.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.27%

Last modified Jun 17, 2026

CVE-2016-9409 is a vulnerability of currently unknown severity. Cross-site scripting (XSS) vulnerability in the Admin control panel 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 vectors involving pruning logs.. EPSS estimates a 1.27% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in the Admin control panel 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 vectors involving pruning logs.

Metrics

EPSS Probability

1.27%

66.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mybb	Merge System	<= 1.8.6
Mybb	Mybb	<= 1.8.6

References

http://www.openwall.com/lists/oss-security/2016/11/10/8Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/18/1Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/94395Third Party Advisory, VDB Entry
https://blog.mybb.com/2016/03/11/mybb-1-8-7-merge-system-1-8-7-release/Patch, Release Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/11/10/8Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/18/1Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/94395Third Party Advisory, VDB Entry
https://blog.mybb.com/2016/03/11/mybb-1-8-7-merge-system-1-8-7-release/Patch, Release Notes, Vendor Advisory

Timeline

Published: Jan 31, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9409?

How severe is CVE-2016-9409?

Severity scoring for CVE-2016-9409 is pending analysis. The EPSS model estimates a 1.27% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9409?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9409?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST