WordPress Plugin Vulnerabilities
Paid Memberships Pro < 2.9.9 - Contributor+ Stored XSS via Shortcode
Description
The plugin does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.
Proof of Concept
1. Insert the following shortcode into a page/post: [pmpro_checkout_button class='" onmouseover="alert(1)"'] 2. Browse the page and hover over the button.
Affects Plugins
Fixed in 2.9.9 References
CVE
Classification
Type
XSS
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
Lana Codes
Submitter
Lana Codes
Submitter website
Submitter twitter
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2023-01-27 (about 1 years ago)
Added
2023-01-23 (about 1 years ago)
Last Updated
2023-01-23 (about 1 years ago)
WPScan 