Stored XSS Vulnerability in MyBB Application by MyBB Group
CVE-2021-41866

5.4MEDIUM

Key Information:

Vendor

Mybb

Status
Mybb
Vendor
CVE Published:
26 October 2021

What is CVE-2021-41866?

MyBB, a popular forum software, is susceptible to a stored XSS vulnerability due to the improper handling of Template Name values in the Admin Control Panel's theme management. This allows attackers to inject malicious scripts that execute in the context of an administrator's browser session, potentially leading to unauthorized access to sensitive information or control over the application.

References

https://github.com/mybb/mybb/security/advisories/
x_refsource_MISC
https://github.com/mybb/mybb/security/advisories/GHSA-gxh...
x_refsource_CONFIRM

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.