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TI-2016-07684 Aliases CVE-2016-9412GHSA-6383-pc77-7rvv

MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allow…

Priority MEDIUM 46CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-284.

Summary

MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allow attackers to have unspecified impact via vectors related to low adminsid and sid entropy.

Why it matters now

EPSS 0.02168 82nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mybb:merge_system:*:*:*:*:*:*:*:*up to 1.8.6Vulnerablemybb
cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*up to 1.8.6Vulnerablemybb
  • cpe:2.3:a:mybb:merge_system:*:*:*:*:*:*:*:* Versions up to 1.8.6 Vulnerable ·mybb
  • cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:* Versions up to 1.8.6 Vulnerable ·mybb

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-9412
  2. 2026-10-03 Alias added: GHSA-6383-pc77-7rvv

References

Patch 3

  • TI-2016-07692 MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allow remote… CVSS 3.0CRITICAL 9.8
  • TI-2016-07675 newreply.php in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before… CVSS 3.0CRITICAL 9.8
  • TI-2015-07387 SQL injection vulnerability in the Group Promotions module in the admin control panel in… CVSS 3.0CRITICAL 10.0
  • TI-2016-07688 SQL injection vulnerability in the users data handler in MyBB (aka MyBulletinBoard)… CVSS 3.0CRITICAL 9.8
  • TI-2016-07674 SQL injection vulnerability in the moderation tool in MyBB (aka MyBulletinBoard) before… CVSS 3.0CRITICAL 9.8
  • TI-2015-07386 xmlhttp.php in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB… CVSS 3.0HIGH 8.3
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences