How severe is CVE-2021-27314?

CVE-2021-27314 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-2021-27314 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27314?

CVE-2021-27314 affects Doctor Appointment System Project Doctor Appointment System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27314?

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-2021-27314 published?

CVE-2021-27314 was published on 2021-03-05 and last updated on 2026-06-17.

CVE-2021-27314

CVE-2021-27314 is a critical-severity vulnerability in Doctor Appointment System Project Doctor Appointment System with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. 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: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Doctor Appointment System Project Doctor Appointment System
Published: 2021-03-05
Last modified: 2026-06-17

Description

SQL injection in admin.php in doctor appointment system 1.0 allows an unauthenticated attacker to insert malicious SQL queries via username parameter at login page.

Frequently asked questions

What is CVE-2021-27314?: SQL injection in admin.php in doctor appointment system 1.0 allows an unauthenticated attacker to insert malicious SQL queries via username parameter at login page.
How severe is CVE-2021-27314?: CVE-2021-27314 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-2021-27314 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27314?: CVE-2021-27314 affects Doctor Appointment System Project Doctor Appointment System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27314?: 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-2021-27314 published?: CVE-2021-27314 was published on 2021-03-05 and last updated on 2026-06-17.

References

https://packetstormsecurity.com/files/161641/Doctor-Appointment-System-1.0-SQL-Injection.html

Affected products (1)

cpe:2.3:a:doctor_appointment_system_project:doctor_appointment_system:1.0:*:*:*:*:*:*:*

More vulnerabilities in Doctor Appointment System Project Doctor Appointment System

CVE-2023-40945 — Critical (CVSS 9.8): Sourcecodester Doctor Appointment System 1.0 is vulnerable to SQL Injection in the variable $userid at…
CVE-2023-39852 — Critical (CVSS 9.8): Doctormms v1.0 was discovered to contain a SQL injection vulnerability via the $userid parameter at myAppoinment.php.…
CVE-2021-27320 — High (CVSS 7.5): Blind SQL injection in contactus.php in Doctor Appointment System 1.0 allows an unauthenticated attacker to insert…
CVE-2021-27319 — High (CVSS 7.5): Blind SQL injection in contactus.php in Doctor Appointment System 1.0 allows an unauthenticated attacker to insert…
CVE-2021-27316 — High (CVSS 7.5): Blind SQL injection in contactus.php in doctor appointment system 1.0 allows an unauthenticated attacker to insert…
CVE-2021-27315 — High (CVSS 7.5): Blind SQL injection in contactus.php in Doctor Appointment System 1.0 allows an unauthenticated attacker to insert…

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