CVE-2021-24490: The Email Artillery (MASS EMAIL) WordPress plugin through 4.1 does not properly check the uploaded files from

Q: How do I fix CVE-2021-24490?

email artillery: upgrade to newer than 4.1. Exact commands for each OS are on this page.

Q: Is CVE-2021-24490 being exploited?

CVE-2021-24490 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-2021-24490 affect?

CVE-2021-24490 affects email artillery. Severity is medium (CVSS 6.8). The Email Artillery (MASS EMAIL) WordPress plugin through 4.1 does not properly check the uploaded files from the Import Emails feature, allowing arbitrary files to be uploaded. Furthermore, the plugin is also lacking any CSRF check, allowi

Q: How urgent is CVE-2021-24490?

Priority 40/100. Public exploit reference

This month

MEDIUM 6.8UPGRADE

CVE-2021-24490 is a medium-severity flaw (CVSS 6.8) affecting email artillery. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Email Artillery (MASS EMAIL) WordPress plugin through 4.1 does not properly check the uploaded files from the Import Emails feature, allowing arbitrary files to be uploaded. Furthermore, the plugin is also lacking any CSRF check, allowing such issue to be exploited via a CSRF attack as well. However, due to the presence of a .htaccess, denying access to everything in the folder the file is uploaded to, the malicious uploaded file will only be

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-352, CWE-434
Published	2021-09-13
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: email artillery project

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

Am I affected?

Timeline

2021-09-13 18:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

email artillery project email artillery UPGRADE

Affected: <= 4.1

Fixed in: newer than 4.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy email-artillery || rpm -q email-artillery || email-artillery --version

2. UPGRADE to newer than 4.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade email-artillery

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade email-artillery

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-2021-24490?

email artillery: upgrade to newer than 4.1. Exact commands for each OS are on this page.

Is CVE-2021-24490 being exploited?

CVE-2021-24490 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-2021-24490 affect?

CVE-2021-24490 affects email artillery. Severity is medium (CVSS 6.8). The Email Artillery (MASS EMAIL) WordPress plugin through 4.1 does not properly check the uploaded files from the Import Emails feature, allowing arbitrary files to be uploaded. Furthermore, the plugin is also lacking any CSRF check, allowi

How urgent is CVE-2021-24490?

Priority 40/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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