Is CVE-2021-39416 actively exploited?

No active exploitation of CVE-2021-39416 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-39416 be exploited remotely?

Yes. CVE-2021-39416 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-39416?

CVE-2021-39416 has a CVSS score of 6.1 (MEDIUM).

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MEDIUM

CVE-2021-39416

CWE-79Published: November 5, 2021· Updated: Jun 17, 2026

6.1

CVSS v3.1

Official Description

Multiple Cross Site Scripting (XSS) vulnerabilities exists in Remote Clinic v2.0 in (1) patients/register-patient.php via the (a) Contact, (b) Email, (c) Weight, (d) Profession, (e) ref_contact, (f) address, (g) gender, (h) age, and (i) serial parameters; in (2) patients/edit-patient.php via the (a) Contact, (b) Email, (c) Weight, Profession, (d) ref_contact, (e) address, (f) serial, (g) age, and (h) gender parameters; in (3) staff/edit-my-profile.php via the (a) Title, (b) First Name, (c) Last Name, (d) Skype, and (e) Address parameters; and in (4) clinics/settings.php via the (a) portal_name, (b) guardian_short_name, (c) guardian_name, (d) opening_time, (e) closing_time, (f) access_level_5, (g) access_level_4, (h) access_level_ 3, (i) access_level_2, (j) access_level_1, (k) currency, (l) mobile_number, (m) address, (n) patient_contact, (o) patient_address, and (p) patient_email parameters.

NVD Source

Technical Analysis

CVE-2021-39416 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.