#VU56814 Cross-site scripting in User Activation Email - CVE-2021-38325

Vulnerability identifier: #VU56814

Vulnerability risk: Low

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

CVE-ID: CVE-2021-38325

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
User Activation Email
Web applications / Modules and components for CMS

Vendor: Nate Jacobs

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "uae-key" parameter in the ~/user-activation-email.php file. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

User Activation Email: 0.1 - 1.3.0

---

External links
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38325
https://plugins.trac.wordpress.org/browser/user-activation-email/tags/1.3.0/user-activation-email.php#L191

---

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.