Vulnerability identifier: #VU27866

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-352

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Page Builder by SiteOrigin
Web applications / Modules and components for CMS

Vendor: SiteOrigin

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in the live editor and action_builder_content functions. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website, leading to XSS.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Page Builder by SiteOrigin: 2.3 - 2.10.15

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External links
http://wpvulndb.com/vulnerabilities/10219/
http://www.wordfence.com/blog/2020/05/vulnerabilities-patched-in-page-builder-by-siteorigin-affects-over-1-million-sites/
http://www.youtube.com/watch?v=fpoHlcXoBmE

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.