CVE-2021-24414: The Video Player for YouTube WordPress plugin before 1.4 does not sanitise or validate the parameters from its

Q: How do I fix CVE-2021-24414?

video player for youtube: upgrade to 1.4. Exact commands for each OS are on this page.

Q: Is CVE-2021-24414 being exploited?

CVE-2021-24414 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-24414 affect?

CVE-2021-24414 affects video player for youtube. Severity is medium (CVSS 5.4). 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 i

Q: How urgent is CVE-2021-24414?

Priority 36/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2021-24414 is a medium-severity flaw (CVSS 5.4) affecting video player for youtube. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-10-25
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: video player for youtube project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-10-25 14:15 UTCPublished CVE record published
2026-06-17 03:39 UTCUpdated Record last modified

video player for youtube project video player for youtube UPGRADE

Affected: < 1.4

Fixed in: 1.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy video-player-for-youtube || rpm -q video-player-for-youtube || video-player-for-youtube --version

2. UPGRADE to 1.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade video-player-for-youtube

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade video-player-for-youtube

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-24414?

video player for youtube: upgrade to 1.4. Exact commands for each OS are on this page.

Is CVE-2021-24414 being exploited?

CVE-2021-24414 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-24414 affect?

CVE-2021-24414 affects video player for youtube. Severity is medium (CVSS 5.4). 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 i

How urgent is CVE-2021-24414?

Priority 36/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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