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. This flaw allows unauthenticated attackers to upload arbitrary PHP files via a base64-encoded payload and execute code on the server. A patch addressing this vulnerability was released in April 2026.
AI Analysis
Technical Summary
ThemisNETPanel contains a missing authentication vulnerability (CWE-306) in a critical file upload endpoint. This allows remote attackers to bypass authentication controls and upload arbitrary PHP files by sending base64-encoded payloads, leading to remote code execution on the underlying server. The vulnerability has a CVSS 4.0 score of 9.3 (critical) and was fixed by a patch released in April 2026.
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 affected environment.
Mitigation Recommendations
A patch fixing this vulnerability was released in April 2026. Users should apply the official patch from 4real immediately to remediate the issue. No other mitigation details or temporary fixes are provided. Patch status is not explicitly confirmed in the advisory, but the vendor has released a fix.
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. This flaw allows unauthenticated attackers to upload arbitrary PHP files via a base64-encoded payload and execute code on the server. A patch addressing this vulnerability 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) in a critical file upload endpoint. This allows remote attackers to bypass authentication controls and upload arbitrary PHP files by sending base64-encoded payloads, leading to remote code execution on the underlying server. The vulnerability has a CVSS 4.0 score of 9.3 (critical) and was fixed by a patch released in April 2026.
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 affected environment.
Mitigation Recommendations
A patch fixing this vulnerability was released in April 2026. Users should apply the official patch from 4real immediately to remediate the issue. No other mitigation details or temporary fixes are provided. Patch status is not explicitly confirmed in the advisory, but the vendor has released a fix.
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: 07/20/2026, 19:18:36 UTC
Last updated: 08/15/2026, 00:41:15 UTC
Views: 80
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