Medium severity6.1NVD Advisory· Published Jan 31, 2017· Updated Jun 17, 2026
CVE-2016-9421
CVE-2016-9421
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:a:mybb:merge_system:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mybb:merge_system:*:*:*:*:*:*:*:*range: <=1.8.7
- (no CPE)range: <1.8.8
Patches
Vulnerability mechanics
References
4- 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/2016/10/17/mybb-1-8-8-merge-system-1-8-8-release/nvdPatchRelease NotesVendor Advisory
- www.securityfocus.com/bid/94396nvdThird Party AdvisoryVDB Entry
News mentions
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