How severe is CVE-2021-42580?

CVE-2021-42580 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-2021-42580 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-42580?

CVE-2021-42580 affects Oretnom23 Online Learning System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-42580?

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-2021-42580 published?

CVE-2021-42580 was published on 2021-11-15 and last updated on 2026-06-17.

CVE-2021-42580

CVE-2021-42580 is a critical-severity vulnerability in Oretnom23 Online Learning 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: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Oretnom23 Online Learning System
Published: 2021-11-15
Last modified: 2026-06-17

Description

Sourcecodester Online Learning System 2.0 is vunlerable to sql injection authentication bypass in admin login file (/admin/login.php) and authenticated file upload in (Master.php) file , we can craft these two vunlerablities to get unauthenticated remote command execution.

Frequently asked questions

What is CVE-2021-42580?: Sourcecodester Online Learning System 2.0 is vunlerable to sql injection authentication bypass in admin login file (/admin/login.php) and authenticated file upload in (Master.php) file , we can craft these two vunlerablities to get unauthenticated remote command execution.
How severe is CVE-2021-42580?: CVE-2021-42580 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-2021-42580 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42580?: CVE-2021-42580 affects Oretnom23 Online Learning System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-42580?: 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-2021-42580 published?: CVE-2021-42580 was published on 2021-11-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:oretnom23:online_learning_system:2.0:*:*:*:*:*:*:*

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