CVE-2023-6449

The Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'validate' function and insufficient blocklisting on the 'wpcf7_antiscript_file_name' function in versions up to, and including, 5.8.3. This makes it possible for authenticated attackers with editor-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed in most cases. By default, the file will be deleted from the server immediately. However, in some cases, other plugins may make it possible for the file to live on the server longer. This can make remote code execution possible when combined with another vulnerability, such as local file inclusion.

We have discovered 1,269,986 live websites that are affected by CVE-2023-6449.

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Affected Software

Product  Contact Form 7
Category Form Builders
Vulnerable Domains1,269,986 live websites (35% of Contact Form 7 install base)
Vulnerable Versions
  • from 0 through 5.8.3
Vulnerable Versions Count98 versions ( 77% of all versions)



Details

  • Published - Dec 1, 2023
  • Updated - Oct 15, 2024

Credits

  • István Márton (finder)

Website Distribution by Country

Number of websites using CVE-2023-6449
United States238,592 websites


Japan127,989 websites
Germany121,221 websites
France82,769 websites
Italy73,923 websites
Russia61,649 websites
GB49,992 websites
Poland39,887 websites
Spain39,467 websites
Netherlands37,301 websites

Website Distribution by TLD

Number of websites using CVE-2023-6449
.com487,846 websites
.de67,045 websites
.it51,290 websites
.ru49,835 websites
.org39,482 websites
.fr33,892 websites
.co.uk32,671 websites
.nl32,625 websites
.net32,243 websites
.pl30,232 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2023-6449

Top websites that are affected by CVE-2023-6449. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
****.br Brazil***
********.com Singapore*,***
************.com United States*,***
*******.org United States*,***
*********.com United States*,***
***************.com United States*,***
*********.com United States*,***
*****.****.br Brazil*,***
*********.com United States*,***
********.****.br Brazil*,***
See full domain list

FAQ

A total of 1,269,986 websites have been identified as vulnerable to CVE-2023-6449, based on global website indexing conducted by WebTechSurvey.
The Contact Form 7 is affected by the CVE-2023-6449 vulnerability.
Contact Form 7 versions up to and including 5.8.3 are vulnerable to CVE-2023-6449.