CVE-2018-1000503

low-risk
Published 2018-06-26

MyBB Group MyBB contains a Incorrect Access Control vulnerability in Private forums that can result in Users can view posts from private forums without having the password. This attack appear to be exploitable via Subscribe to a forum through IDOR. This vulnerability appears to have been fixed in 1.8.15.

Do I need to act?

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0.15% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Mybb

References (4)

Third Party Advisory http://www.batterystapl.es/2018/03/local-file-inclusion-and-reading.html
Vendor Advisory https://blog.mybb.com/2018/03/15/mybb-1-8-15-released-security-maintenance-relea...
Third Party Advisory http://www.batterystapl.es/2018/03/local-file-inclusion-and-reading.html
Vendor Advisory https://blog.mybb.com/2018/03/15/mybb-1-8-15-released-security-maintenance-relea...
24
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal