Blog Designer - Post and Widget <= 2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

2023-01-04 00:00

István Márton

Strategic Overview

Status

Patched in 2.4

Affected PluginBlog Designer – Post and Widget

Affected Version<= 2.3

CVSS6.4Medium

CVECVE-2022-4793

View all Blog Designer – Post and Widget vulnerabilities

Vulnerability Overview

The Blog Designer - Post and Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcodes in versions up to, and including, 2.3 due to insufficient input sanitization and output escaping on user supplied attributes like 'design'. This makes it possible for authenticated attackers with contributor level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page

Technical Analysis

REMEDIATION: Update to version 2.4, 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-2022-4793 https://www.wordfence.com/threat-intel/vulnerabilities/id/64694d30-a780-4655-9a65-af1cfa542ccc

CVSS Vector

6.4

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

Base

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

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