Insert or Embed Articulate Content into WordPress <= 4.3000000023 - Iframe Injection

2024-05-1400:00:00

Dmitrii Ignatyev

wpscan.com

iframe injection

arbitrary content

url validation

wordpress plugin

update

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

6.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

14.2%

JSON

Description The plugin lacks validation of URLs when adding iframes, allowing attackers to inject an iFrame in the page and thus load arbitrary content from any page.

PoC

Create a new post 2) Add and e-Learning block and upload a zip file 3) Select the “Insert As: Iframe” option 4) Intercept the request to create a new post and in the body: POST /index.php?rest_route=%2Fwp%2Fv2%2Fposts%2F236&_locale=user HTTP/2 {"id":236,"content":"","status":"publish"} change the src to a URL of an external site. 5) Open the new post and see that it loads the content from the original source