WordPress Plugin Vulnerabilities

Custom Post Type List Shortcode <= 1.4.4 - Contributor+ Stored XSS

Description

The plugin does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Proof of Concept

Note: First you need to add a Post Category with a following name: " onmouseover="alert(1)"
Note: Second you need to add a Post with the exploit category.

[cpt_list post_type='post' category='" onmouseover="alert(1)"']

Affects Plugins

References

Classification

Type
XSS
CWE

Miscellaneous

Original Researcher
Lana Codes
Submitter
Lana Codes
Submitter website
Submitter twitter
Verified
Yes

Timeline

Publicly Published
2023-04-17 (about 1 years ago)
Added
2023-04-17 (about 1 years ago)
Last Updated
2023-04-17 (about 1 years ago)

Other