01 Record
CVE-2016-9412
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.
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.16% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 81.9% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-01-31 22:00Z9 YR AGO
- Last updated
- 2024-08-06 02:50Z2 YR AGO
- Reserved
- 2016-11-17
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-284Improper Access ControlPillar
- Data version
- 5.1
- Document digest
- 2db947feb7c63860cb0ea2b265df51a022b2334cf5ffdefc172fc2e7f0e708fa
05 Affected products
06 References
- www.securityfocus.com94395http://www.securityfocus.com/bid/94395
- www.openwall.com[oss-security] 20161117 Re: CVE request: MyBB multiple vulnerabilitieshttp://www.openwall.com/lists/oss-security/2016/11/18/1
- www.openwall.com[oss-security] 20161110 CVE request: MyBB multiple vulnerabilitieshttp://www.openwall.com/lists/oss-security/2016/11/10/8
- blog.mybb.comhttps://blog.mybb.com/2016/03/11/mybb-1-8-7-merge-system-1-8-7-release/