CVE Vulnerability

CVE-2019-12830

In MyBB before 1.8.21, an attacker can exploit a parsing flaw in the Private Message / Post renderer that leads to [video] BBCode persistent XSS to take over any forum account, aka a nested video MyCode issue.

3.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

8.7 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://blog.ripstech.com/2019/mybb-stored-xss-to-rce/ Exploit Vendor Advisory
https://blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release/ Release Notes Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*
Information

Published : 2019-06-15 06:29

Updated : 2019-06-20 12:46

NVD link : CVE-2019-12830

Mitre link : CVE-2019-12830

Products Affected
No products.
CWE
CWE-79