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CVE-2016-9411

16
FAUCET Score

CVE-2016-9411 describes an information disclosure vulnerability in MyBB (MyBulletinBoard) before version 1.8.7 and MyBB Merge System before 1.8.7. This flaw allows unauthenticated remote attackers to obtain the installation path of the affected software through vectors related to sending emails. Rated as Medium severity (CVSS 5.3), the vulnerability has low attack complexity and requires no user interaction, potentially leading to a limited impact on confidentiality. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.8.6CPE matchmatch criteria
cpe:2.3:a:mybb:merge_system:*:*:*:*:*:*:*:*
<= 1.8.6CPE matchmatch criteria
cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 62nd percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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