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Fencer Intel
high 7.2

CVE-2021-39352 in the critical feed json

Catch Themes Demo Import <= 1.7 Admin+ Arbitrary File Upload

published 5y ago modified 4mo ago also EUVD-2021-25713

cvss
7.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
56.3%
EPSS 56.3% chance of exploitation in 30 days, percentile 99%
public exploits
1
Metasploit

Summary

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.

Patch / fix

Is CVE-2021-39352 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

  1. First public exploit (Metasploit exploit/multi/http/wp_catch_themes_demo_import)
  2. Published

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

56.26% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit exploit/multi/http/wp_catch_themes_demo_import Wordpress Plugin Catch Themes Demo Import RCE metasploit exploit, normal rank, 2021-10-21
  • github.com https://github.com/BigTiger2020/word-press/blob/main/Catch%20Themes%20Demo%20Import.md referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/165207/WordPress-Catch-Themes-Demo-Import-1.6.1-Shell-Upload.html referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/Hacker5preme/Exploits/tree/main/Wordpress/CVE-2021-39352 referenced PoC, tagged "exploit" by a source, unverified
  • exploit-db.com https://www.exploit-db.com/exploits/50580 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Catch Themes Demo Import Catch Themes Demo Import

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type
Technology feeds

References

Sources

Fencer Intel 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.