CVE-2015-8977

HIGH 7.5CVE-2015-8977 · Published 31/01/2017 · updated 17/06/2026

In short

CVE-2015-8977 is a HIGH (CVSS 7.5) vulnerability affecting merge system (mybb), mybb (mybb).
Chance of exploitation in the next 30 days (EPSS): 2.2%, higher than 82.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
merge system mybb	`≤ 1.8.5`	No fix yet
mybb mybb	`= 1.8.0= 1.8.1= 1.8.2= 1.8.3= 1.8.4= 1.8.5≤ 1.6.17`	No fix yet

Description

MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allow remote attackers to obtain the installation path via vectors involving error log files.

References

openwall.com/lists/oss-security/2016/11/10/8 · Third Party Advisory
openwall.com/lists/oss-security/2016/11/18/1 · Mailing List
securityfocus.com/bid/94397 · Third Party Advisory
blog.mybb.com/2015/09/07/mybb-1-8-6-1-6-18-merge-system-1-8-6-release · Release Notes

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Package

Affected versions

Patched versions

merge system

mybb

≤ 1.8.5

No fix yet

mybb

= 1.8.0= 1.8.1= 1.8.2= 1.8.3= 1.8.4= 1.8.5≤ 1.6.17

No fix yet

More vulnerabilities in merge system

See all →