VulnerabilityModified
CVE-2015-8973
xmlhttp.php in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to bypass intended access restrictions via vectors related to the forum password.
HIGH 8.3EPSS 1.63%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
xmlhttp.php in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to bypass intended access restrictions via vectors related to the forum password.
- CVSS 3.0
- 8.3 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- EPSS
- 1.63% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- mybb/merge system · mybb/mybb
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2016/11/10/8Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/11/18/1Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/94397Third Party Advisory, VDB Entry
- https://blog.mybb.com/2015/09/07/mybb-1-8-6-1-6-18-merge-system-1-8-6-release/Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/11/10/8Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/11/18/1Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/94397Third Party Advisory, VDB Entry
- https://blog.mybb.com/2015/09/07/mybb-1-8-6-1-6-18-merge-system-1-8-6-release/Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.