How severe is CVE-2023-42121?

CVE-2023-42121 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-2023-42121 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-42121?

CVE-2023-42121 affects Control-webpanel Webpanel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-42121?

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.

Does CVE-2023-42121 have an EU (EUVD) identifier?

Yes. CVE-2023-42121 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-46580.

When was CVE-2023-42121 published?

CVE-2023-42121 was published on 2024-05-03 and last updated on 2026-06-17.

CVE-2023-42121

CVE-2023-42121 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-46580
Weakness: CWE-306
Affected product: Control-webpanel Webpanel
Published: 2024-05-03
Last modified: 2026-06-17

Description

Control Web Panel Missing Authentication Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Control Web Panel. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of authentication within the web interface. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to execute code in the context of a valid CWP user. Was ZDI-CAN-20582.

Frequently asked questions

What is CVE-2023-42121?: Control Web Panel Missing Authentication Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Control Web Panel. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of authentication within the web interface. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to execute code in the context of a valid CWP user. Was ZDI-CAN-20582.
How severe is CVE-2023-42121?: CVE-2023-42121 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-2023-42121 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-42121?: CVE-2023-42121 affects Control-webpanel Webpanel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-42121?: 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.
Does CVE-2023-42121 have an EU (EUVD) identifier?: Yes. CVE-2023-42121 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-46580.
When was CVE-2023-42121 published?: CVE-2023-42121 was published on 2024-05-03 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1478/

Affected products (1)

cpe:2.3:a:control-webpanel:webpanel:0.9.8.1152:*:*:*:*:*:*:*

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