Which products and versions are affected by CVE-2021-45466?

Affected: Webpanel (Control-Webpanel). The full list is in the CVE brief.

Is CVE-2021-45466 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2021-45466 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2021-45466?

Public exploit code is available.

Is there a fix for CVE-2021-45466?

Fixed versions are available, including Webpanel 0.9.8.1107.

How urgently should CVE-2021-45466 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2021-45466

CriticalPublic exploit

In CWP (aka Control Web Panel or CentOS Web Panel) before 0.9.8.1107, attackers can make a crafted request to api/?api=add_server&DHCP= to add an authorized_keys text file in the /resources/ folder.

Published Dec 26, 2022 · Updated Apr 14, 2025

Key Facts

Patch immediately

CVE-2021-45466 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Webpanel (Control-Webpanel).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 55% probability of exploitation in the next 30 days.
Fixed versions are available, including Webpanel 0.9.8.1107.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

55%

Higher than 99.0% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2021-45466 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

In CWP (aka Control Web Panel or CentOS Web Panel) before 0.9.8.1107, attackers can make a crafted request to api/?api=add_server&DHCP= to add an authorized_keys text file in the /resources/ folder.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
WebpanelControl-Webpanel	See advisory	0.9.8.1107

Patched Releases

Webpanel

0.9.8.1107

Timeline

Publicly disclosed
Dec 26, 2022
Last updated
Apr 14, 2025

Weakness Type

CWE-863 Incorrect Authorization

References

FAQ

Common Questions.

In CWP (aka Control Web Panel or CentOS Web Panel) before 0.9.8.1107, attackers can make a crafted request to api/?api=add_server&DHCP= to add an authorized_keys text file in the /resources/ folder.
Affected: Webpanel (Control-Webpanel). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Webpanel 0.9.8.1107.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2021-45466 Running On Your Attack Surface?

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