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CVE-2017-8104

20
FAUCET Score

CVE-2017-8104 is a directory traversal vulnerability affecting MyBB versions prior to 1.8.11, specifically within the smilie module via the 'pathfolder' parameter. This medium-severity vulnerability has a CVSS score of 5.3, indicating it can be exploited remotely with low complexity and no user interaction, potentially leading to information disclosure. There is no evidence of active exploitation, nor are there publicly available exploits in Metasploit, Nuclei, or ExploitDB, and it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.8.10CPE 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
2.51%
Probability of exploitation in next 30 days
EPSS Percentile
83.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0251 is in the 75th percentile among its peer group of 23,723 CVEs.

Social Chatter

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 / 2017/04/04/mybb-1-8-11-merge-system-1-8-11-release
PatchVendor Advisory
seclists.org / fulldisclosure/2017/Apr/55
ExploitMailing ListThird Party AdvisoryVDB Entry
securityfocus.com / bid/98045
Third Party AdvisoryVDB Entry