CVE-2021-24224: The EFBP_verify_upload_file AJAX action of the Easy Form Builder WordPress plugin through 1.0, available to au

Q: How do I fix CVE-2021-24224?

easy-form-builder-by-bitware: upgrade to newer than 1.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-24224 being exploited?

CVE-2021-24224 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-2021-24224 affect?

CVE-2021-24224 affects easy-form-builder-by-bitware. Severity is high (CVSS 8.8). The EFBP_verify_upload_file AJAX action of the Easy Form Builder WordPress plugin through 1.0, available to authenticated users, does not have any security in place to verify uploaded files, allowing low privilege users to upload arbitrary

Q: How urgent is CVE-2021-24224?

Priority 56/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2021-24224 is a high-severity flaw (CVSS 8.8) affecting easy-form-builder-by-bitware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The EFBP_verify_upload_file AJAX action of the Easy Form Builder WordPress plugin through 1.0, available to authenticated users, does not have any security in place to verify uploaded files, allowing low privilege users to upload arbitrary files, leading to RCE.

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	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-434
Published	2021-04-12
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: easy-form-builder-by-bitware project

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

Am I affected?

Timeline

2021-04-12 14:15 UTCPublished CVE record published
2026-06-17 03:39 UTCUpdated Record last modified

easy-form-builder-by-bitware project easy-form-builder-by-bitware UPGRADE

Affected: <= 1.0

Fixed in: newer than 1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy easy-form-builder-by-bitware || rpm -q easy-form-builder-by-bitware || easy-form-builder-by-bitware --version

2. UPGRADE to newer than 1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade easy-form-builder-by-bitware

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade easy-form-builder-by-bitware

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-2021-24224?

easy-form-builder-by-bitware: upgrade to newer than 1.0. Exact commands for each OS are on this page.

Is CVE-2021-24224 being exploited?

CVE-2021-24224 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-2021-24224 affect?

CVE-2021-24224 affects easy-form-builder-by-bitware. Severity is high (CVSS 8.8). The EFBP_verify_upload_file AJAX action of the Easy Form Builder WordPress plugin through 1.0, available to authenticated users, does not have any security in place to verify uploaded files, allowing low privilege users to upload arbitrary

How urgent is CVE-2021-24224?

Priority 56/100. High severity; Public exploit reference

Software pages

WordPress vulnerabilities

References

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