#VU26596 Open redirect in WordPress SEO Plugin - Rank Math - CVE-2020-11515

Vulnerability identifier: #VU26596

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-11515

CWE-ID: CWE-601

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WordPress SEO Plugin - Rank Math
Web applications / Modules and components for CMS

Vendor: Rank Math

Description

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data in the "rankmath/v1/updateRedirection" REST-API endpoint in "update_redirection" function. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain..

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

WordPress SEO Plugin - Rank Math: 1.0.0 - 1.0.40.2

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External links
https://wpvulndb.com/vulnerabilities/10157/
https://www.wordfence.com/blog/2020/03/critical-vulnerabilities-affecting-over-200000-sites-patched-in-rank-math-seo-plugin/

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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.