CVE-2022-38352Public exploitNetwork attack vector

Unauthenticated code execution via crafted serialized object chain

Published Sep 15, 2022 · Updated Aug 3, 2024

Deserialization in ThinkPHP 6.0.13 and earlier allows remote attackers to execute arbitrary code through a crafted serialized payload. A Psr6Cache object graph chains object destruction through ThinkPHP logging objects to Php::display, which evaluates attacker-controlled PHP and writes it to a file. Network access to an application endpoint that unserializes the payload is required; successful exploitation executes PHP with the application's privileges.

CVSS severity9.8
Critical
EPSS probability20.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in ThinkPHP 6.0.13 and earlier allows remote attackers to execute arbitrary code through a crafted serialized payload. A Psr6Cache object graph chains object destruction through ThinkPHP logging objects to Php::display, which evaluates attacker-controlled PHP and writes it to a file. Network access to an application endpoint that unserializes the payload is required; successful exploitation executes PHP with the application's privileges.

The record

CVE
CVE-2022-38352
Published
Sep 15, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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