CVE-2021-24611: The Keyword Meta WordPress plugin through 3.0 does not sanitise of escape its settings before outputting them

Q: How do I fix CVE-2021-24611?

keyword meta: upgrade to newer than 3.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-24611 being exploited?

CVE-2021-24611 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-2021-24611 affect?

CVE-2021-24611 affects keyword meta. Severity is medium (CVSS 5.4). The Keyword Meta WordPress plugin through 3.0 does not sanitise of escape its settings before outputting them back in the page after they are saved, allowing for Cross-Site Scripting issues. Furthermore, it is also lacking any CSRF check, a

Q: How urgent is CVE-2021-24611?

Priority 30/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2021-24611 is a medium-severity flaw (CVSS 5.4) affecting keyword meta. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Keyword Meta WordPress plugin through 3.0 does not sanitise of escape its settings before outputting them back in the page after they are saved, allowing for Cross-Site Scripting issues. Furthermore, it is also lacking any CSRF check, allowing attacker to make a logged in high privilege user save arbitrary setting via a CSRF attack.

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	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-79, CWE-352
Published	2021-09-06
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: keyword meta project

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

Am I affected?

Timeline

2021-09-06 11:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

keyword meta project keyword meta UPGRADE

Affected: <= 3.0

Fixed in: newer than 3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy keyword-meta || rpm -q keyword-meta || keyword-meta --version

2. UPGRADE to newer than 3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade keyword-meta

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade keyword-meta

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-2021-24611?

keyword meta: upgrade to newer than 3.0. Exact commands for each OS are on this page.

Is CVE-2021-24611 being exploited?

CVE-2021-24611 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-2021-24611 affect?

CVE-2021-24611 affects keyword meta. Severity is medium (CVSS 5.4). The Keyword Meta WordPress plugin through 3.0 does not sanitise of escape its settings before outputting them back in the page after they are saved, allowing for Cross-Site Scripting issues. Furthermore, it is also lacking any CSRF check, a

How urgent is CVE-2021-24611?

Priority 30/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

← Back to latest CVEs