CVE-2026-66672: CWE-502 Deserialization of Untrusted Data in Monkeysan Flatastic
Unauthenticated PHP Object Injection in Flatastic <= 2.0 versions.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-502, occurs in Monkeysan Flatastic software versions up to 2.0. It allows unauthenticated attackers to perform PHP Object Injection via deserialization of untrusted data, leading to remote code execution. The CVSS 3.1 base score is 9.8, indicating critical severity with network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to complete compromise of the affected system, including full control over confidentiality, integrity, and availability of the application and potentially the underlying server. Since no authentication is required, the attack surface is broad, increasing risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the affected application and monitor for suspicious activity related to deserialization inputs.
CVE-2026-66672: CWE-502 Deserialization of Untrusted Data in Monkeysan Flatastic
Description
Unauthenticated PHP Object Injection in Flatastic <= 2.0 versions.
CVSS v3.1
Score 9.8critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-502, occurs in Monkeysan Flatastic software versions up to 2.0. It allows unauthenticated attackers to perform PHP Object Injection via deserialization of untrusted data, leading to remote code execution. The CVSS 3.1 base score is 9.8, indicating critical severity with network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to complete compromise of the affected system, including full control over confidentiality, integrity, and availability of the application and potentially the underlying server. Since no authentication is required, the attack surface is broad, increasing risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the affected application and monitor for suspicious activity related to deserialization inputs.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-07-27T14:00:48.793Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a86f1b2acd9273b49977c30
Added to database: 08/20/2026, 12:23:14 UTC
Last enriched: 08/20/2026, 12:39:42 UTC
Last updated: 08/20/2026, 17:36:06 UTC
Views: 5
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