Flowplayer Video Player < 1.0.5 - Contributor+ Stored XSS

2022-11-2200:00:00

Lana Codes

102

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

JSON

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

As a contributor, put, the following shortcode in a page/post

[flowplayer src='" onerror=alert(/XSS/) "']

The XSS will be triggered when viewing/previewing the page/post