CVE-2021-24471

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 v3.1

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

CVSS v2.0

2.1 LOWAV:N/AC:H/Au:S/C:N/I:P/A:N

EPSS

0.58% chance of exploitation in the next 30 days, 45th percentile

Published

2021-08-16

Updated

2024-08-03

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2021-24468
• CVE-2021-24472
• CVE-2021-24467
• CVE-2021-24473
• CVE-2021-24466
• CVE-2021-24476