Description
Cross-site scripting (XSS) vulnerability in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 might allow remote attackers to inject arbitrary web script or HTML via vectors related to "old upgrade files."
Metrics
CVSS 3.0 6.1/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
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/94397
- 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/94397
- https://blog.mybb.com/2015/09/07/mybb-1-8-6-1-6-18-merge-system-1-8-6-release/Release Notes, Vendor Advisory
Timeline
- Published
- Jan 31, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified