How severe is CVE-2021-43451?

CVE-2021-43451 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-2021-43451 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43451?

CVE-2021-43451 affects Phpgurukul Employee Record Management System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43451?

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-2021-43451 published?

CVE-2021-43451 was published on 2021-12-01 and last updated on 2026-06-17.

CVE-2021-43451

CVE-2021-43451 is a critical-severity vulnerability in Phpgurukul Employee Record Management System 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: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Phpgurukul Employee Record Management System
Published: 2021-12-01
Last modified: 2026-06-17

Description

SQL Injection vulnerability exists in PHPGURUKUL Employee Record Management System 1.2 via the Email POST parameter in /forgetpassword.php.

Frequently asked questions

What is CVE-2021-43451?: SQL Injection vulnerability exists in PHPGURUKUL Employee Record Management System 1.2 via the Email POST parameter in /forgetpassword.php.
How severe is CVE-2021-43451?: CVE-2021-43451 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-2021-43451 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43451?: CVE-2021-43451 affects Phpgurukul Employee Record Management System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43451?: 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-2021-43451 published?: CVE-2021-43451 was published on 2021-12-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpgurukul:employee_record_management_system:1.2:*:*:*:*:*:*:*

More vulnerabilities in Phpgurukul Employee Record Management System

CVE-2021-37782 — Critical (CVSS 9.8): Employee Record Management System v 1.2 is vulnerable to SQL Injection via editempprofile.php.
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CVE-2020-35427 — Critical (CVSS 9.8): SQL injection vulnerability in PHPGurukul Employee Record Management System 1.1 allows remote attackers to execute…
CVE-2021-44965 — High (CVSS 7.5): Directory traversal vulnerability in /admin/includes/* directory for PHPGURUKUL Employee Record Management System 1.2…
CVE-2025-6300 — High (CVSS 7.3): A vulnerability classified as critical was found in PHPGurukul Employee Record Management System 1.3. This…
CVE-2025-5212 — High (CVSS 7.3): A vulnerability was found in PHPGurukul Employee Record Management System 1.3. It has been classified as critical.…

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