CVE-2026-6847: CWE-306 Missing Authentication for Critical Function in 4real ThemisNETPanel
CVE-2026-6847 is a critical remote code execution vulnerability in 4real ThemisNETPanel caused by missing authentication on a critical file upload function. An unauthenticated attacker can upload arbitrary PHP files via a base64-encoded payload and execute code on the server. A patch addressing this issue was released in April 2026.
AI Analysis
Technical Summary
ThemisNETPanel contains a missing authentication vulnerability (CWE-306) on a critical file upload endpoint. This flaw allows unauthenticated remote attackers to upload arbitrary PHP files by submitting base64-encoded payloads, leading to remote code execution on the underlying server. The vulnerability has a CVSS 4.0 score of 9.3, indicating critical severity. The vendor released a patch in April 2026 to fix the issue, although explicit affected versions are not provided.
Potential Impact
Successful exploitation enables unauthenticated remote attackers to execute arbitrary code on the server hosting ThemisNETPanel. This can lead to full system compromise, data theft, or further attacks within the network. The vulnerability is critical due to its remote, unauthenticated nature and high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A patch was released by the vendor in April 2026 to fix this vulnerability. Users of ThemisNETPanel should apply the official patch immediately to remediate the issue. Since this is not a cloud service, remediation depends on applying the vendor's patch. Patch status is not explicitly confirmed in the advisory, so verify with the vendor for the latest remediation guidance.
CVE-2026-6847: CWE-306 Missing Authentication for Critical Function in 4real ThemisNETPanel
Description
CVE-2026-6847 is a critical remote code execution vulnerability in 4real ThemisNETPanel caused by missing authentication on a critical file upload function. An unauthenticated attacker can upload arbitrary PHP files via a base64-encoded payload and execute code on the server. A patch addressing this issue was released in April 2026.
CVSS v4.0
Score 9.3critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
ThemisNETPanel contains a missing authentication vulnerability (CWE-306) on a critical file upload endpoint. This flaw allows unauthenticated remote attackers to upload arbitrary PHP files by submitting base64-encoded payloads, leading to remote code execution on the underlying server. The vulnerability has a CVSS 4.0 score of 9.3, indicating critical severity. The vendor released a patch in April 2026 to fix the issue, although explicit affected versions are not provided.
Potential Impact
Successful exploitation enables unauthenticated remote attackers to execute arbitrary code on the server hosting ThemisNETPanel. This can lead to full system compromise, data theft, or further attacks within the network. The vulnerability is critical due to its remote, unauthenticated nature and high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A patch was released by the vendor in April 2026 to fix this vulnerability. Users of ThemisNETPanel should apply the official patch immediately to remediate the issue. Since this is not a cloud service, remediation depends on applying the vendor's patch. Patch status is not explicitly confirmed in the advisory, so verify with the vendor for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CERT-PL
- Date Reserved
- 2026-04-22T08:08:03.689Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a54ecab68715ace4317635e
Added to database: 07/13/2026, 13:48:27 UTC
Last enriched: 07/13/2026, 14:02:28 UTC
Last updated: 07/13/2026, 14:41:12 UTC
Views: 6
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