CVE-2021-26628

MaxBoard XSS and File Upload Vulnerability

MEDIUM
6.1
CVSS Score
Published: April 26, 2022 at 06:21 PM UTC
Updated: June 17, 2026 at 03:43 AM UTC
2 products affected across 2 vendorsMaxboardMaxBoard· also runs on 1 platform

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.8%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.9.6.1
Affected range stops below 1.9.6.1, so it looks safe — our inference, not a vendor statement
linux-linux-kernel (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79CWE-434

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