HTML5 Responsive FAQ <= 2.8.5 - Authenticated Stored Cross-Site Scripting

2021-11-23 00:00

José Aguilera

Strategic Overview

Status

Unpatched

Affected PluginHTML5 Responsive FAQ

Affected Version<= 2.8.5

CVSS5.5Medium

CVECVE-2021-24995

View all HTML5 Responsive FAQ vulnerabilities

Vulnerability Overview

The HTML5 Responsive FAQ plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.8.5 due to insufficient input sanitization and output escaping. This makes it possible for high privilege attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This exploit can occur even when unfiltered_html is disallowed.

Technical Analysis

REMEDIATION: No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement. --- 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-2021-24995 https://www.wordfence.com/threat-intel/vulnerabilities/id/247a095b-0a92-4fee-85cf-c3041a061d62

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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