CVE-2021-28379: web/upload/UploadHandler.php in Vesta Control Panel (aka VestaCP) through 0.9.8-27 and myVesta through 0.9.8-2

Q: How do I fix CVE-2021-28379?

myvesta: upgrade to newer than 0.9.8-26-39; vesta control panel: upgrade to newer than 0.9.8-27. Exact commands for each OS are on this page.

Q: Is CVE-2021-28379 being exploited?

CVE-2021-28379 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-2021-28379 affect?

CVE-2021-28379 affects myvesta, vesta control panel. Severity is high (CVSS 8.8). web/upload/UploadHandler.php in Vesta Control Panel (aka VestaCP) through 0.9.8-27 and myVesta through 0.9.8-26-39 allows uploads from a different origin.

Q: How urgent is CVE-2021-28379?

Priority 59/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

This month

HIGH 8.8UPGRADEUPGRADE

CVE-2021-28379 is a high-severity flaw (CVSS 8.8) affecting myvesta, vesta control panel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

web/upload/UploadHandler.php in Vesta Control Panel (aka VestaCP) through 0.9.8-27 and myVesta through 0.9.8-26-39 allows uploads from a different origin.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
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	None
User interaction	Required
EPSS exploit chance	6.0% (top 7%)
CISA exploited list	No
Weakness	CWE-434
Published	2021-03-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: myvestacp · vestacp

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

Am I affected?

Timeline

2021-03-15 06:15 UTCPublished CVE record published
2026-06-17 03:46 UTCUpdated Record last modified

myvestacp myvesta UPGRADE

Affected: <= 0.9.8-26-39

Fixed in: newer than 0.9.8-26-39

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy myvesta || rpm -q myvesta || myvesta --version

2. UPGRADE to newer than 0.9.8-26-39 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade myvesta

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade myvesta

Note

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

vestacp vesta control panel UPGRADE

Affected: <= 0.9.8-27

Fixed in: newer than 0.9.8-27

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy vesta-control-panel || rpm -q vesta-control-panel || vesta-control-panel --version

2. UPGRADE to newer than 0.9.8-27 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade vesta-control-panel

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vesta-control-panel

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.

Exploit-DB: VestaCP 0.9.8 - File Upload CSRF

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-2021-28379?

myvesta: upgrade to newer than 0.9.8-26-39; vesta control panel: upgrade to newer than 0.9.8-27. Exact commands for each OS are on this page.

Is CVE-2021-28379 being exploited?

CVE-2021-28379 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-2021-28379 affect?

CVE-2021-28379 affects myvesta, vesta control panel. Severity is high (CVSS 8.8). web/upload/UploadHandler.php in Vesta Control Panel (aka VestaCP) through 0.9.8-27 and myVesta through 0.9.8-26-39 allows uploads from a different origin.

How urgent is CVE-2021-28379?

Priority 59/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

← Back to latest CVEs