Google Fonts Typography <= 3.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via blockType arguments

2021-08-23 00:00

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Strategic Overview

Status

Patched in 3.0.3

Affected PluginFonts Plugin | Google Fonts, Adobe Fonts & Upload Fonts

Affected Version< 3.0.3

CVSS5.4Medium

CVECVE-2021-24637

View all Fonts Plugin | Google Fonts, Adobe Fonts & Upload Fonts vulnerabilities

Vulnerability Overview

The Google Fonts Typography WordPress plugin before 3.0.3 does not escape and sanitize some of its block settings, allowing users with as role as low as Contributor to perform Stored Cross-Site Scripting attacks via blockType (combined with content), align, color, variant and fontID argument of a Gutenberg block.

Technical Analysis

REMEDIATION: Update to version 3.0.3, or a newer patched version --- 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-2021-24637 https://www.wordfence.com/threat-intel/vulnerabilities/id/9d3b4315-05cd-4349-8dd9-ea6792048a9d

CVSS Vector

5.4

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

Base

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

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