Flat Preloader < 1.5.5 - Stored Cross-Site Scripting

2021-09-28 00:00

apple502j

Strategic Overview

Status

Patched in 1.5.5

Affected PluginFlat Preloader

Affected Version< 1.5.5

CVSS5.5Medium

CVECVE-2021-24789

View all Flat Preloader vulnerabilities

Vulnerability Overview

The Flat Preloader WordPress plugin before 1.5.5 does not escape some of its settings when outputting them in attribute in the frontend, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed.

Technical Analysis

REMEDIATION: Update to version 1.5.5, 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-2021-24789 https://www.wordfence.com/threat-intel/vulnerabilities/id/1832b11a-0706-438a-9a25-d384ac49d2bf

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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