myStickymenu <= 2.5.1 - Authenticated Stored Cross-Site Scripting

2021-06-21 00:00

R3N0

Strategic Overview

Status

Patched in 2.5.2

Affected PluginMy Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu)

Affected Version< 2.5.2

CVSS4.8Medium

CVECVE-2021-24425

View all My Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu) vulnerabilities

Vulnerability Overview

The Floating Notification Bar, Sticky Menu on Scroll, and Sticky Header for Any Theme – myStickymenu WordPress plugin before 2.5.2 does not sanitise or escape its Bar Text settings, allowing hight privilege users to use malicious JavaScript in it, leading to a Stored Cross-Site Scripting issue, which will be triggered in the plugin's setting, as well as all front-page of the blog (when the Welcome bar is active)

Technical Analysis

REMEDIATION: Update to version 2.5.2, 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-2021-24425 https://www.wordfence.com/threat-intel/vulnerabilities/id/5d432ea5-9ffd-43da-8988-6dd77b907655

CVSS Vector

4.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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