Medium severity6.1NVD Advisory· Published Jan 31, 2017· Updated Jun 17, 2026

CVE-2016-9404

Description

Cross-site scripting (XSS) vulnerability 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 related to login.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

MyBB/Merge System2 versions
cpe:2.3:a:mybb:merge_system:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mybb:merge_system:*:*:*:*:*:*:*:*range: <=1.8.6
- (no CPE)range: <1.8.7
MyBB/Mybb2 versions
cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*range: <=1.8.6
- (no CPE)range: <1.8.7

Patches

Vulnerability mechanics

References

www.openwall.com/lists/oss-security/2016/11/10/8nvdMailing ListPatchThird Party Advisory
www.openwall.com/lists/oss-security/2016/11/18/1nvdMailing ListPatchThird Party Advisory
blog.mybb.com/2016/03/11/mybb-1-8-7-merge-system-1-8-7-release/nvdPatchRelease NotesVendor Advisory
www.securityfocus.com/bid/94395nvdThird Party AdvisoryVDB Entry

News mentions

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cvss	0.397
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000