Helpful <= 4.4.58 - Admin+ Stored Cross-Site Scripting

2021-10-18 00:00

Kévin Mosbahi (Mika)

Strategic Overview

Status

Patched in 4.4.59

Affected PluginHelpful

Affected Version< 4.4.59

CVSS5.5Medium

CVECVE-2021-24841

View all Helpful vulnerabilities

Vulnerability Overview

The Helpful WordPress plugin before 4.4.59 does not sanitise and escape some of its settings, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed

Technical Analysis

REMEDIATION: Update to version 4.4.59, 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-2021-24841 https://www.wordfence.com/threat-intel/vulnerabilities/id/15f03dc6-2881-4f70-925c-80ef9ce40be2

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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