Flex Local Fonts <= 1.0.0 - Authenticated (Admin+) Stored Cross-Site Scripting

2021-11-15 00:00

Vishal Mohan

Strategic Overview

Status

Unpatched

Affected PluginFlex Local Fonts

Affected Version<= 1.0.0

CVSS5.5Medium

CVECVE-2021-24782

View all Flex Local Fonts vulnerabilities

Vulnerability Overview

The Flex Local Fonts WordPress plugin through 1.0.0 does not escape the Class Name field when adding a font, which could allow hight privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Technical Analysis

REMEDIATION: No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement. --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2021-24782 https://www.wordfence.com/threat-intel/vulnerabilities/id/d5744ed4-f150-48a6-9f5d-d49f9d4c8454

CVSS Vector

5.5

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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