Broken Link Checker <= 1.11.19 - Authenticated (Administrator+) Stored Cross-Site Scripting

2022-11-11 00:00

Jihoon Lee

Strategic Overview

Status

Patched in 1.11.20

Affected PluginBroken Link Checker

Affected Version<= 1.11.19

CVSS5.5Medium

CVECVE-2022-3922

View all Broken Link Checker vulnerabilities

Vulnerability Overview

The Broken Link Checker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘youtube_api_key’ parameter in versions up to, and including, 1.11.19 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 1.11.20, 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-2022-3922 https://www.wordfence.com/threat-intel/vulnerabilities/id/e9ee4f4e-5098-406c-b712-a2484180a07d

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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