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MixPHP Framework CVE-2026-42473

| EUVD-2026-26674 CRITICAL
Deserialization of Untrusted Data (CWE-502)
2026-05-01 mitre
9.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
May 01, 2026 - 19:22 vuln.today
CVSS changed
May 01, 2026 - 19:22 NVD
9.8 (None) 9.8 (CRITICAL)
EUVD ID Assigned
May 01, 2026 - 16:00 euvd
EUVD-2026-26674
Analysis Generated
May 01, 2026 - 16:00 vuln.today
CVE Published
May 01, 2026 - 00:00 nvd
CRITICAL 9.8

DescriptionNVD

Unsafe deserialization vulnerability in MixPHP Framework 2.x thru 2.2.17. The session and cache handlers use unserialize() on data from the filesystem in the FileHandler object.

AnalysisAI

Remote code execution in MixPHP Framework 2.x through 2.2.17 allows unauthenticated network attackers to execute arbitrary code via unsafe deserialization. The FileHandler class processes session and cache data using PHP's unserialize() on filesystem-sourced content without validation, enabling object injection attacks. …

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RemediationAI

Within 24 hours: Identify all systems running MixPHP Framework 2.x and document versions via dependency scanning and deployment inventories; isolate affected production systems from untrusted networks if upgrade is not immediately feasible. Within 7 days: Upgrade all instances to MixPHP Framework 2.2.18 or later (vendor confirmation of fixed version required); perform full application testing in staging environment before production deployment. …

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CVE-2026-42473 vulnerability details – vuln.today

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