CVE-2021-39338
Assigner: Wordfence
Published: 2021-10-14T00:00:00
State: PUBLISHED
affected: product: MyBB Cross-Poster
vendor: MyBB Cross-Poster
versions: lessThanOrEqual: 1.0
status: affected
version: 1.0
versionType: custom
credits: value: Thinkland Security Team
datePublic: 2021-10-14T00:00:00
descriptions: value: The MyBB Cross-Poster WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/classes/MyBBXPSettings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 1.0. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: HIGH
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
version: 3.1
problemTypes: descriptions: cweId: CWE-79
description: CWE-79 Cross-site Scripting (XSS)
type: CWE
solutions: value: Uninstall plugin from WordPress site.
source: discovery: EXTERNAL
title: MyBB Cross-Poster <= 1.0 Authenticated Stored Cross-Site Scripting
x_generator: engine: Vulnogram 0.0.9