WordPress Popup <= 1.9.3.8 - Admin+ Stored Cross-Site Scripting

2022-07-0500:00:00

Raad Haddad of Cloudyrion GmbH

130

4.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

JSON

The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks when the unfiltered_html capability is disallowed (for example in multisite setup)

On http://target.tld/wp-admin/edit.php?post_type=spucpt&page=spu_settings

Add the payload "><script>alert(/XSS/)</script> on the Affiliate link text field