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NVD / CVE Program· CNA mitre

CVE-2021-45466: 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…

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Plan (action score 56/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 55.3% (FIRST EPSS); higher than 99% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • According to the record, no fixed version is available yet.

Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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
Jun 17, 2026
EPSS
55.3% · 99th percentile

Report tools

JSON

Action score

56

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
17 / 30 · 55.3%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-45466

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
control-webpanelwebpanel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • control-webpanel webpanelbefore 0.9.8.1107

Same product

control-webpanel: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-44877login/index.php in CWP (aka Control Web Panel or CentOS Web Panel) 7 before 0.9.8.1147 allows remote attackers to execute arbitrary OS…KEV
    99Now
  • CVE-2025-48703CWP (aka Control Web Panel or CentOS Web Panel) before 0.9.8.1205 allows unauthenticated remote code execution via shell metacharacters in…KEV
    96Now
  • CVE-2021-45467In CWP (aka Control Web Panel or CentOS Web Panel) before 0.9.8.1107, an unauthenticated attacker can use %00 bytes to cause…
    60This week

Published before and after this one in the same product

  • ← EarlierCVE-2022-25047Jul 7, 2022 · The password reset token in CWP v0.9.8.1126 is generated using known or predictable values.
    24Monitor
  • ← EarlierCVE-2022-25048Jul 7, 2022 · Command injection vulnerability in CWP v0.9.8.1126 that allows normal users to run commands as the root user.
    41Plan
  • Later →CVE-2023-42120May 2, 2024 · Control Web Panel dns_zone_editor Command Injection Remote Code Execution Vulnerability
    36Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-863 · Incorrect Authorization

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records