Arbitrary file upload in Divi and Extra themes for WordPress

1) Arbitrary file upload

EUVDB-ID: #VU34055

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload within the "import" function in the "portability.php" file. A remote authenticated attacker can upload a malicious file and execute it on the server.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Divi: 3.0 - 4.5.2

Extra: 2.0 - 4.5.2

CPE2.3

• cpe:2.3:a:elegantthemes:divi:3.0:*:*:*:*:*:*:*
• cpe:2.3:a:elegantthemes:divi:3.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:elegantthemes:divi:3.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:elegantthemes:extra:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:elegantthemes:extra:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:elegantthemes:extra:2.0.2:*:*:*:*:*:*:*

External links

https://wpvulndb.com/vulnerabilities/10342/
https://www.wordfence.com/blog/2020/08/critical-vulnerability-exposes-over-700000-sites-using-divi-extra-and-divi-builder/
https://us7.campaign-archive.com/?u=9ae7aa91c578052b052b864d6&id=cb6b4b1ed3

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.