CVE-2021-24471 Information

Description

The YouTube Embed WordPress plugin before 5.2.2 does not validate escape or sanitise some of its shortcode attributes leading to Stored XSS issues by 1. using w h controls cc_lang color language start stop or style parameter of youtube shortcode 2. by using style class rel target width height or alt parameter of youtube_thumb shortcode or 3. by embedding a video whose title or description contains XSS payload (if API key is configured).

CVSS Vector

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

Reference

https://wpscan.com/vulnerability/a8ccb09a-9f8c-448f-b2d0-9b01c3a748ac

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4