Catch Themes Demo Import <= 1.7 Admin+ Arbitrary File Upload
CVE-2021-39352

7.2HIGH

Key Information:

Vendor

WordPress
Status
Catch Themes Demo Import
Vendor
CVE Published:
21 October 2021

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 75%

What is CVE-2021-39352?

The Catch Themes Demo Import WordPress plugin is vulnerable to arbitrary file uploads via the import functionality found in the ~/inc/CatchThemesDemoImport.php file, in versions up to and including 1.7, due to insufficient file type validation. This makes it possible for an attacker with administrative privileges to upload malicious files that can be used to achieve remote code execution.

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Deploy the Patch

Affected Version(s)

Catch Themes Demo Import 1.7

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-39352 - Proof of Concept

References

https://www.wordfence.com/vulnerability-advisories/#CVE-2...
x_refsource_MISC
https://plugins.trac.wordpress.org/changeset/2617555/catc...
x_refsource_MISC
https://github.com/BigTiger2020/word-press/blob/main/Catc...
x_refsource_MISC

EPSS Score

75% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thinkland Security Team
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