Security readout for executives and security teams
This CVE is a cross-site scripting issue in MyBB’s user control panel and MyBB Merge System before 1.8.7. If reachable, an attacker might inject script or HTML into affected workflows, potentially affecting forum users or administrators who view the malicious content. Exposure is most likely where MyBB or MyBB Merge System versions earlier than 1.8.7 are deployed, especially internet-facing forums with enabled user control panel functionality. Treat this as a moderate priority for any internet-facing MyBB forum. The issue can affect user trust and administrator sessions, but the public record lacks exploit evidence and severity scoring. Patch during the next security maintenance window, sooner for high-value communities. Mitigation focus: Upgrade MyBB and MyBB Merge System to version 1.8.7 or later.; Review the MyBB 1.8.7 release advisory for vendor-specific security notes.; Inventory public forums and administrative panels for outdated MyBB deployments..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2016-9406 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://blog.mybb.com/2016/03/11/mybb-1-8-7-merge-system-1-8-7-release/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.