MyBB < 1.6.17 / 1.8.x < 1.8.5 Multiple Vulnerabilities

medium Nessus Network Monitor Plugin ID 9121

Synopsis

The remote web server is running a PHP application that is vulnerable to multiple attack vectors.

Description

Versions of MyBB (MyBulletinBoard) prior to 1.6.17, or 1.8.x prior to 1.8.5 are affected by the following vulnerabilities :

- A validation flaw in the 'member.php' script that can allow a remote attacker to bypass the reset password code check and reset arbitrary passwords.
- A flaw exists in ACP Mass Mail Cancellation feature as HTTP requests do not require multiple steps, explicit confirmation, or a unique token when performing certain sensitive actions. By tricking a user into following a specially crafted link, a context-dependent attacker can perform a Cross-Site Request Forgery (CSRF / XSRF) attack causing the victim to mass cancel mails.
- A flaw exists which allows users to create usernames with the 'U+200E' unicode characters. This may allow a remote attacker to create usernames that appear overly similar to another user's name.
- An access flaw exists in 'search.php' that is due to the program failing to check for permissions when searching for posts with old SIDs. This may allow a remote attacker to gain access to potentially sensitive information in old posts.

Solution

Upgrade to MyBB version 1.6.17 / 1.8.5 or later.

Plugin Details

Severity: Medium

ID: 9121

Family: CGI

Published: 3/3/2016

Updated: 3/6/2019

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mybb:mybb

Patch Publication Date: 5/27/2015

Vulnerability Publication Date: 5/27/2015

Detections

Analytics