Simple Membership <= 4.4.5 - Authenticated(Contributor+) Stored Cross-Site Scripting via Shortcode

2024-05-03 00:00

wesley (wcraft)

Strategic Overview

Status

Patched in 4.4.6

Affected PluginSimple Membership

Affected Version<= 4.4.5

CVSS6.4Medium

CVECVE-2024-4383

View all Simple Membership vulnerabilities

Vulnerability Overview

The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'swpm_paypal_subscription_cancel_link' shortcode in all versions up to, and including, 4.4.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 4.4.6, 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-2024-4383 https://www.wordfence.com/threat-intel/vulnerabilities/id/56fdbf80-8ea2-412a-b166-b7c27de88e70

CVSS Vector

6.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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