Use Any Font <= 6.2.0 - Unauthenticated Arbitrary CSS Appending

2022-01-31 00:00

Krzysztof Zając

Strategic Overview

Status

Patched in 6.2.1

Affected PluginUse Any Font | Custom Font Uploader

Affected Version< 6.2.1

CVSS6.1Medium

CVECVE-2021-24977

View all Use Any Font | Custom Font Uploader vulnerabilities

Vulnerability Overview

The Use Any Font | Custom Font Uploader WordPress plugin before 6.2.1 does not have any authorisation checks when assigning a font, allowing unauthenticated users to send arbitrary CSS which will then be processed by the frontend for all users. Due to the lack of sanitisation and escaping in the backend, it could also lead to Stored XSS issues

Technical Analysis

REMEDIATION: Update to version 6.2.1, or a newer patched version --- IDENTIFIER: CWE-862 (Missing Authorization) The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

External References

https://www.cve.org/CVERecord?id=CVE-2021-24977 https://www.wordfence.com/threat-intel/vulnerabilities/id/cb6de4da-0d60-4332-be25-5521e430a4fa

CVSS Vector

6.1

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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