CVE-2021-26628CWE-434CWE-79

MaxBoard XSS and File Upload Vulnerability

High · published April 26, 2022

CVSS v3.1
8.1
EPSS
1%
Percentile
55.6
In the wild
Unconfirmed
What it is

Insufficient script validation of the admin page enables XSS, which causes unauthorized users to steal admin privileges. When uploading file in a specific menu, the verification of the files is insufficient. It allows remote attackers to upload arbitrary files disguising them as image files.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00786 · 55.6th percentile
Weaknesses
CWE-434 · Unrestricted Upload of File with Dangerous Type; CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2022-04-26T18:21Z
EPSS history
Timeline
  • 26 APR 18:21Z
    MaxBoard XSS and File Upload Vulnerability
    cvelistv5