Time spent: 5 hours spent in total
Objective: Find, analyze, recreate, and document five vulnerabilities affecting an old version of WordPress
- Submit Comment XSS Vulnerability
-
Summary: In WordPress before 4.2.2— user is allowed to submit malicious javascript in a comment box on any page. A standard example is just an alert box. Whenever someone now loads the main page, this alert box will pop up.
- Vulnerability types: XSS
- Tested in version: 4.2
- Fixed in version: 4.2.1
- Generic User Enumeration of WP-Login.php page
-
Summary: Allows the user to enumerate thru a list of valid usernames—— this is till a flaw in the code and the page should not specify whether usernames are valid or not. Someone with malicious intent could validate whether a user account exists and then attempt to brute force access.
- Vulnerability types: USER ENUMERATION
- Tested in version: 4.2
- Fixed in version: 4.3
-
Summary: User must have permission to create and/or edit posts. Using the text tab, a user can submit a malicious script inside raw html code. A classic example is a hover over script as scene in the gif.
- Vulnerability types: XSS
- Tested in version: 4.2
- Fixed in version: 4.2.3
sumofpwn.nl/advisory
GIFs created with LiceCap.
Copyright [2018] [Jacob Biller]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.