CVE-2021-24669: The MAZ Loader – Preloader Builder for WordPress plugin before 1.3.3 does not validate or escape the loader_id

Q: How do I fix CVE-2021-24669?

maz loader: upgrade to 1.3.3. Exact commands for each OS are on this page.

Q: Is CVE-2021-24669 being exploited?

CVE-2021-24669 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-2021-24669 affect?

CVE-2021-24669 affects maz loader. Severity is high (CVSS 8.8). The MAZ Loader – Preloader Builder for WordPress plugin before 1.3.3 does not validate or escape the loader_id parameter of the mzldr shortcode, which allows users with a role as low as Contributor to perform SQL injection.

Q: How urgent is CVE-2021-24669?

Priority 54/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2021-24669 is a high-severity flaw (CVSS 8.8) affecting maz loader. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The MAZ Loader – Preloader Builder for WordPress plugin before 1.3.3 does not validate or escape the loader_id parameter of the mzldr shortcode, which allows users with a role as low as Contributor to perform SQL injection.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-11-08
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: feataholic

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

Am I affected?

Timeline

2021-11-08 18:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

feataholic maz loader UPGRADE

Affected: < 1.3.3

Fixed in: 1.3.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy maz-loader || rpm -q maz-loader || maz-loader --version

2. UPGRADE to 1.3.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade maz-loader

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade maz-loader

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-2021-24669?

maz loader: upgrade to 1.3.3. Exact commands for each OS are on this page.

Is CVE-2021-24669 being exploited?

CVE-2021-24669 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-2021-24669 affect?

CVE-2021-24669 affects maz loader. Severity is high (CVSS 8.8). The MAZ Loader – Preloader Builder for WordPress plugin before 1.3.3 does not validate or escape the loader_id parameter of the mzldr shortcode, which allows users with a role as low as Contributor to perform SQL injection.

How urgent is CVE-2021-24669?

Priority 54/100. High severity; Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2021-24668 MEDIUM 4.3 UPGRADE The MAZ Loader WordPress plugin before 1.4.1 does not enforce nonce checks, which allows attackers to make adm

References

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