Event Manager for WooCommerce <= 3.8.6 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'mep_get_option' function

2023-03-20 00:00

Yuki Haruma

Strategic Overview

Status

Patched in 3.8.7

Affected PluginEvent Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar

Affected Version<= 3.8.6

CVSS4.4Medium

CVECVE-2023-28422

View all Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar vulnerabilities

Vulnerability Overview

The Event Manager for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'mep_get_option' function in versions up to, and including, 3.8.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrator-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 3.8.7, 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-2023-28422 https://www.wordfence.com/threat-intel/vulnerabilities/id/c2f4c1de-7eeb-45c4-bbff-ec85f2cda5aa

CVSS Vector

4.4

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

Base

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

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