HTML Forms <= 1.3.28 - Authenticated (Administrator+) Cross-Site Scripting

2023-12-21 00:00

Huynh Tien Si

Strategic Overview

Status

Patched in 1.3.30

Affected PluginHTML Forms – Simple WordPress Forms Plugin

Affected Version<= 1.3.28

CVSS5.5Medium

CVECVE-2023-50836

View all HTML Forms – Simple WordPress Forms Plugin vulnerabilities

Vulnerability Overview

The HTML Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.3.28 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Technical Analysis

REMEDIATION: Update to version 1.3.30, 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-2023-50836 https://www.wordfence.com/threat-intel/vulnerabilities/id/2921ea67-e88a-489a-8c45-cfe458f29d2b

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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