CVE-2021-24414: YT Player < 1.4 - Contributor+ Stored Cross-Site Scripting

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-10-25 · updated 2026-06-17
Weakness: CWE-79

Description

The Video Player for YouTube WordPress plugin before 1.4 does not sanitise or validate the parameters from its shortcode, allowing users with a role as low as contributor to set Cross-Site Scripting payload in them which will be triggered in the page/s with the embed malicious shortcode

Affected products

Video Player for YouTube: before 1.4 — fixed in 1.4

How to fix

Upgrade to a fixed version: Video Player for YouTube 1.4. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/e20b805d-eb11-4702-9803-77de276000ac
https://wpscan.com/vulnerability/e20b805d-eb11-4702-9803-77de276000ac

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