CVE-2021-43693: vesta 0.9.8-24 is affected by a file inclusion vulnerability in file web/add/user/index.php.

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-43693 is a critical-severity flaw (CVSS 9.8) affecting vesta control panel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

vesta 0.9.8-24 is affected by a file inclusion vulnerability in file web/add/user/index.php.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Published	2021-11-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: vestacp

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

Am I affected?

Timeline

2021-11-29 15:15 UTCPublished CVE record published
2026-06-17 04:11 UTCUpdated Record last modified

vestacp vesta control panel DOWNGRADE

Affected: 0.9.8-24

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.8-24

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.9.8-24 (Debian / Ubuntu)

apt-cache madison vesta-control-panel sudo apt install vesta-control-panel=<VERSION_BEFORE_0.9.8-24> sudo apt-mark hold vesta-control-panel

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list vesta-control-panel sudo dnf downgrade vesta-control-panel-<VERSION_BEFORE_0.9.8-24> sudo dnf versionlock add vesta-control-panel

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2021-43693?

vesta control panel: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-43693 being exploited?

CVE-2021-43693 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-2021-43693 affect?

CVE-2021-43693 affects vesta control panel. Severity is critical (CVSS 9.8). vesta 0.9.8-24 is affected by a file inclusion vulnerability in file web/add/user/index.php.

How urgent is CVE-2021-43693?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2022-36305 MEDIUM 6.1 DOWNGRADE Vesta v1.0.0-5 was discovered to contain a cross-site scripting (XSS) vulnerability via the body function at /
CVE-2022-36304 MEDIUM 6.1 DOWNGRADE Vesta v1.0.0-5 was discovered to contain a cross-site scripting (XSS) vulnerability via the generate_response
CVE-2022-36303 MEDIUM 6.1 DOWNGRADE Vesta v1.0.0-5 was discovered to contain a cross-site scripting (XSS) vulnerability via the handle_file_upload
CVE-2022-34025 MEDIUM 6.1 DOWNGRADE Vesta v1.0.0-5 was discovered to contain a cross-site scripting (XSS) vulnerability via the post function at /
CVE-2021-46850 HIGH 7.2 UPGRADE UPGRADE myVesta Control Panel before 0.9.8-26-43 and Vesta Control Panel before 0.9.8-26 are vulnerable to command inj

References

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