Multiple vulnerabilities in Page Builder by SiteOrigin plugin for WordPress

Published: 2020-05-13

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	N/A
CWE-ID	CWE-352
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available.
Vulnerable software Subscribe	Page Builder by SiteOrigin Web applications / Modules and components for CMS
Vendor	SiteOrigin

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site request forgery

EUVDB-ID: #VU27866

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 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

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

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

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.

2) Cross-site request forgery

EUVDB-ID: #VU27867