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CVE-2022-33107Thinkphp Insecure Deserialization

Deserialization of Untrusted Data in topthink/framework

Published Jun 30, 2022 · Updated Aug 12, 2026 · Also known as GHSA-g377-x8rg-c9mf

Key Facts

Patch in the next maintenance window
  • CVE-2022-33107 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Thinkphp, topthink/framework (composer).
  • It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
  • EPSS estimates a 24% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

Scores

CVSS v3.1

9.8

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

EPSS (30-day exploit likelihood)

24%

Higher than 97.8% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

41/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

1

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Description

ThinkPHP v6.0.12 was discovered to contain a deserialization vulnerability via the component vendor\league\flysystem-cached-adapter\src\Storage\AbstractCache.php. This vulnerability allows attackers to execute arbitrary code via a crafted payload.

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
ThinkphpThinkphp6.0.12n/a
topthink/frameworkcomposerSee advisoryn/a

Timeline

  1. Publicly disclosed

    Jun 30, 2022

  2. Last updated

    Aug 12, 2026

Weakness Type

  • CWE-502 Deserialization of Untrusted Data

FAQ

Common Questions.

Is CVE-2022-33107 On Your Attack Surface?

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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