VULNERABILITY INTELLIGENCE

CVE-2020-19049

CVSS score5.4 MEDIUM
EPSS probability0.72%
CISA KEVNot currently listed
Published2021-08-31
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

Cross Site Scripting (XSS) in MyBB v1.8.20 allows remote attackers to inject arbitrary web script or HTML via the "Description" field found in the "Add New Forum" page by doing an authenticated POST HTTP request to '/Upload/admin/index.php?module=forum-management&action=add'.

Weakness classification

  • nvd@nist.gov: CWE-79

Primary references