usmannasir CyberPanel up to 2.4.3 Remote Backup Transfer Feature os command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.2$0-$5k0.00

Summaryinfo

A vulnerability described as very critical has been identified in usmannasir CyberPanel up to 2.4.3. This affects an unknown function of the component Remote Backup Transfer Feature. Executing a manipulation can lead to os command injection. This vulnerability appears as CVE-2026-71966. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in usmannasir CyberPanel up to 2.4.3 and classified as very critical. This vulnerability affects an unknown code block of the component Remote Backup Transfer Feature. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

CyberPanel 2.4.3, fixed in commit eca0c3c, contains an authenticated command injection vulnerability in the remote backup transfer feature that allows authenticated attackers to execute arbitrary OS commands by controlling a remote server's API response. Attackers can inject malicious commands through a crafted directory name in the remote server's API response, which bypasses security middleware validation and is passed unsanitized to the OS command execution function.

The advisory is shared for download at themcsam.github.io. This vulnerability was named CVE-2026-71966 since 08/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/16/2026). The MITRE ATT&CK project declares the attack technique as T1202.

Applying the patch eca0c3cbeb35af8eaae9fafb094e8ef3cd923643 is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 9.4
VulDB Meta Temp Score: 9.2

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (VulnCheck): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: eca0c3cbeb35af8eaae9fafb094e8ef3cd923643

Timelineinfo

08/08/2026 CVE reserved
08/10/2026 +2 days Advisory disclosed
08/10/2026 +0 days VulDB entry created
08/16/2026 +6 days VulDB entry last update

Sourcesinfo

Advisory: themcsam.github.io
Status: Confirmed

CVE: CVE-2026-71966 (🔒)
GCVE (CVE): GCVE-0-2026-71966
GCVE (VulDB): GCVE-100-387868

Entryinfo

Created: 08/10/2026 21:30
Updated: 08/16/2026 09:54
Changes: 08/10/2026 21:30 (54), 08/16/2026 09:54 (23)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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