CVE-2026-42471

CVSS 8.1 HIGHEPSS 1.8%CWE-502

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 8.1EPSS 1.8%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

01 May 2026Published on NVD

29 May 2026Public PoC

Recommendation: Plan a near-term fix — a public PoC already exists.

Unsafe deserialization vulnerability in MixPHP Framework 2.x thru 2.2.17. The sync-invoke client (Connection.php:76) calls unserialize() on data received from the server response, enabling client-side RCE if connecting to a malicious server.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

n/a · n/a

public PoCs found — 1

exploitdbwww.exploit-db.com/exploits/52590unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://gist.github.com/sgInnora/fa46386840fe978a30d7e53c458f2975 https://github.com/mix-php/mix https://github.com/mix-php/mix/blob/v2.2.17/src/sync-invoke/src/Server.php