CVE-2026-42471 json
Unsafe deserialization vulnerability in MixPHP Framework 2.x thru 2.2.17.
published 2026-05-01 6 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-26672
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- Published
- First public exploit (EDB-52590)
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 6 mo ago
Exploit prediction
1.76% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-52590 MixPHP Framework 2.2.17 - Unsafe Deserialization Remote Code Execution webapps, 2026-05-29
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
Sources
- CVE List CVE-2026-42471
- NVD CVE-2026-42471
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.