PDF.js Viewer <= 2.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

2021-08-11 00:00

apple502j

Strategic Overview

Status

Patched in 2.0.2

Affected PluginPDF.js Viewer

Affected Version< 2.0.2

CVSS5.4Medium

CVECVE-2021-24759

View all PDF.js Viewer vulnerabilities

Vulnerability Overview

The PDF.js Viewer WordPress plugin before 2.0.2 does not escape some of its shortcode and Gutenberg Block attributes, which could allow users with a role as low as Contributor to to perform Cross-Site Scripting attacks

Technical Analysis

REMEDIATION: Update to version 2.0.2, 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-2021-24759 https://www.wordfence.com/threat-intel/vulnerabilities/id/d608a4c0-14ba-4801-aa5a-0b4dab0acd65

CVSS Vector

5.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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