CVE-2021-24934: The Visual CSS Style Editor WordPress plugin before 7.5.4 does not sanitise and escape the wyp_page_type param

Q: How do I fix CVE-2021-24934?

visual css style editor: upgrade to 7.5.4. Exact commands for each OS are on this page.

Q: Is CVE-2021-24934 being exploited?

CVE-2021-24934 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-2021-24934 affect?

CVE-2021-24934 affects visual css style editor. Severity is medium (CVSS 6.1). The Visual CSS Style Editor WordPress plugin before 7.5.4 does not sanitise and escape the wyp_page_type parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue

Q: How urgent is CVE-2021-24934?

Priority 44/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2021-24934 is a medium-severity flaw (CVSS 6.1) affecting visual css style editor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Visual CSS Style Editor WordPress plugin before 7.5.4 does not sanitise and escape the wyp_page_type parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-02-01
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: yellowpencil

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

Am I affected?

Timeline

2022-02-01 13:15 UTCPublished CVE record published
2026-06-17 03:41 UTCUpdated Record last modified

yellowpencil visual css style editor UPGRADE

Affected: < 7.5.4

Fixed in: 7.5.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy visual-css-style-editor || rpm -q visual-css-style-editor || visual-css-style-editor --version

2. UPGRADE to 7.5.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade visual-css-style-editor

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade visual-css-style-editor

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Visual CSS Style Editor < 7.5.4 - Cross-Site Scripting

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-2021-24934?

visual css style editor: upgrade to 7.5.4. Exact commands for each OS are on this page.

Is CVE-2021-24934 being exploited?

CVE-2021-24934 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-2021-24934 affect?

CVE-2021-24934 affects visual css style editor. Severity is medium (CVSS 6.1). The Visual CSS Style Editor WordPress plugin before 7.5.4 does not sanitise and escape the wyp_page_type parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue

How urgent is CVE-2021-24934?

Priority 44/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2022-33961 MEDIUM 4.0 UPGRADE Auth

References

← Back to latest CVEs