CVE Vulnerability

CVE-2021-27279

MyBB before 1.8.25 allows stored XSS via nested [email] tags with MyCode (aka BBCode).

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

5.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/mybb/mybb/commit/cb781b49116bf5c4d8deca3e17498122b701677a Patch Third Party Advisory
https://github.com/mybb/mybb/security/advisories/GHSA-6483-hcpp-p75w Exploit Third Party Advisory
https://mybb.com/versions/1.8.25/ Release Notes Vendor Advisory
Configurations

Configuration 1

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

Published : 2021-02-22 08:15

Updated : 2021-02-26 03:37

NVD link : CVE-2021-27279

Mitre link : CVE-2021-27279

Products Affected
No products.
CWE
CWE-79