EventON <= 2.1.7 - Authenticated (Admin+) HTML Injection

2023-11-09 00:00

Miguel Santareno

Strategic Overview

Status

Patched in 2.2

Affected PluginEventON – Events Calendar

Affected Version<= 2.1.7

CVSS3.0Low

CVECVE-2023-6046

View all EventON – Events Calendar vulnerabilities

Vulnerability Overview

The EventON plugin for WordPress is vulnerable to HTML Injection via admin settings in all versions up to, and including, 2.1.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary HTML 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 2.2, 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-2023-6046 https://www.wordfence.com/threat-intel/vulnerabilities/id/4f9bd960-01ef-41dd-ab05-0a5f734484a2

CVSS Vector

3.0

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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