How severe is CVE-2020-15426?

CVE-2020-15426 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-15426 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-15426?

CVE-2020-15426 affects Control-webpanel Webpanel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-15426?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-15426 published?

CVE-2020-15426 was published on 2020-07-28 and last updated on 2026-06-17.

CVE-2020-15426

CVE-2020-15426 is a critical-severity vulnerability in Control-webpanel Webpanel with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Control-webpanel Webpanel
Published: 2020-07-28
Last modified: 2026-06-17

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of CentOS Web Panel cwp-e17.0.9.8.923. Authentication is not required to exploit this vulnerability. The specific flaw exists within ajax_migration_cpanel.php. When parsing the serverip parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9709.

Frequently asked questions

What is CVE-2020-15426?: This vulnerability allows remote attackers to execute arbitrary code on affected installations of CentOS Web Panel cwp-e17.0.9.8.923. Authentication is not required to exploit this vulnerability. The specific flaw exists within ajax_migration_cpanel.php. When parsing the serverip parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9709.
How severe is CVE-2020-15426?: CVE-2020-15426 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-15426 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-15426?: CVE-2020-15426 affects Control-webpanel Webpanel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-15426?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-15426 published?: CVE-2020-15426 was published on 2020-07-28 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-20-743/

Affected products (1)

cpe:2.3:a:control-webpanel:webpanel:0.9.8.923:*:*:*:*:*:*:*

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