What is CVE-2022-38352?

CVE-2022-38352 is a critical-severity vulnerability in Thinkphp, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2022-09-15.

How severe is CVE-2022-38352?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-38352 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Thinkphp

CVE-2022-38352

ThinkPHP v6.0.13 was discovered to contain a deserialization vulnerability via the component League\Flysystem\Cached\Storage\Psr6Cache. This vulnerability allows attackers to execute arbitrary code via a crafted payload.

Vulnerability class: Insecure Deserialization

Published 2022-09-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.206 (97.4th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.202 · newest: 0.206 · change: +0.004

Affected products

Thinkphp — versions 6.0.13

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

github.com/top-think/framework/issues/2749 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-38352?: CVE-2022-38352 is a critical-severity vulnerability in Thinkphp, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2022-09-15.
How severe is CVE-2022-38352?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-38352 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.