Broken Link Checker <= 1.11.8 - Reflected Cross-Site Scripting

2019-10-15 00:00

Anonymous

Strategic Overview

Status

Patched in 1.11.9

Affected PluginBroken Link Checker

Affected Version< 1.11.9

CVSS6.1Medium

CVECVE-2019-16521

View all Broken Link Checker vulnerabilities

Vulnerability Overview

The Broken Link Checker plugin through 1.11.8 for WordPress is susceptible to Reflected XSS due to improper encoding and insertion of an HTTP GET parameter into HTML. The filter function on the page listing all detected broken links can be exploited by providing an XSS payload in the s_filter GET parameter in a filter_id=search request. NOTE: this is an end-of-life product.

Technical Analysis

REMEDIATION: Update to version 1.11.9, 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-2019-16521 https://www.wordfence.com/threat-intel/vulnerabilities/id/9a7709fd-bb53-47a6-9fae-d5a6be513b39

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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