How severe is CVE-2021-43631?

CVE-2021-43631 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-43631 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43631?

CVE-2021-43631 affects Projectworlds Hospital Management System In Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43631?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-43631 published?

CVE-2021-43631 was published on 2021-12-22 and last updated on 2026-06-17.

CVE-2021-43631

CVE-2021-43631 is a critical-severity vulnerability in Projectworlds Hospital Management System In Php with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Projectworlds Hospital Management System In Php
Published: 2021-12-22
Last modified: 2026-06-17

Description

Projectworlds Hospital Management System v1.0 is vulnerable to SQL injection via the appointment_no parameter in payment.php.

Frequently asked questions

What is CVE-2021-43631?: Projectworlds Hospital Management System v1.0 is vulnerable to SQL injection via the appointment_no parameter in payment.php.
How severe is CVE-2021-43631?: CVE-2021-43631 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-43631 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43631?: CVE-2021-43631 affects Projectworlds Hospital Management System In Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43631?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-43631 published?: CVE-2021-43631 was published on 2021-12-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:projectworlds:hospital_management_system_in_php:1.0:*:*:*:*:*:*:*

More vulnerabilities in Projectworlds Hospital Management System In Php

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CVE-2021-43629 — Critical (CVSS 9.8): Projectworlds Hospital Management System v1.0 is vulnerable to SQL injection via multiple parameters in admin_home.php.
CVE-2021-43628 — Critical (CVSS 9.8): Projectworlds Hospital Management System v1.0 is vulnerable to SQL injection via the email parameter in hms-staff.php.
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