Happyforms <= 1.21.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Blocks

2023-01-13 00:00

Strategic Overview

Status

Patched in 1.22.0

Affected PluginHappyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms

Affected Version<= 1.21.1

CVSS6.4Medium

CVECVE-2023-0096

View all Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms vulnerabilities

Vulnerability Overview

The Happyforms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘className’ and 'anchor' block options in versions up to, and including, 1.21.1 due to insufficient input sanitization and output escaping. This makes it possible for contributor-level attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 1.22.0, 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-2023-0096 https://www.wordfence.com/threat-intel/vulnerabilities/id/72f1ffe1-d8af-4aa2-bc58-5f1cd4eaa856

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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