How severe is CVE-2021-42665?

CVE-2021-42665 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-2021-42665 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-42665?

CVE-2021-42665 affects Engineers Online Portal Project Engineers Online Portal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-42665?

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-2021-42665 published?

CVE-2021-42665 was published on 2021-11-05 and last updated on 2026-06-17.

CVE-2021-42665

CVE-2021-42665 is a critical-severity vulnerability in Engineers Online Portal Project Engineers Online Portal 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: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Engineers Online Portal Project Engineers Online Portal
Published: 2021-11-05
Last modified: 2026-06-17

Description

An SQL Injection vulnerability exists in Sourcecodester Engineers Online Portal in PHP via the login form inside of index.php, which can allow an attacker to bypass authentication.

Frequently asked questions

What is CVE-2021-42665?: An SQL Injection vulnerability exists in Sourcecodester Engineers Online Portal in PHP via the login form inside of index.php, which can allow an attacker to bypass authentication.
How severe is CVE-2021-42665?: CVE-2021-42665 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-2021-42665 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42665?: CVE-2021-42665 affects Engineers Online Portal Project Engineers Online Portal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-42665?: 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-2021-42665 published?: CVE-2021-42665 was published on 2021-11-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:engineers_online_portal_project:engineers_online_portal:1.0:*:*:*:*:*:*:*

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