How severe is CVE-2021-46013?

CVE-2021-46013 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-2021-46013 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46013?

CVE-2021-46013 affects Free School Management Software Project Free School Management Software. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-46013?

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-2021-46013 published?

CVE-2021-46013 was published on 2022-01-18 and last updated on 2026-06-17.

CVE-2021-46013

CVE-2021-46013 is a critical-severity vulnerability in Free School Management Software Project Free School Management Software 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Free School Management Software Project Free School Management Software
Published: 2022-01-18
Last modified: 2026-06-17

Description

An unrestricted file upload vulnerability exists in Sourcecodester Free school management software 1.0. An attacker can leverage this vulnerability to enable remote code execution on the affected web server. Once a php webshell containing "<?php system($_GET["cmd"]); ?>" gets uploaded it is saved into /uploads/exam_question/ directory, and is accessible by all users.

Frequently asked questions

What is CVE-2021-46013?: An unrestricted file upload vulnerability exists in Sourcecodester Free school management software 1.0. An attacker can leverage this vulnerability to enable remote code execution on the affected web server. Once a php webshell containing "<?php system($_GET["cmd"]); ?>" gets uploaded it is saved into /uploads/exam_question/ directory, and is accessible by all users.
How severe is CVE-2021-46013?: CVE-2021-46013 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-2021-46013 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46013?: CVE-2021-46013 affects Free School Management Software Project Free School Management Software. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-46013?: 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-2021-46013 published?: CVE-2021-46013 was published on 2022-01-18 and last updated on 2026-06-17.

References

https://www.exploit-db.com/exploits/50587

Affected products (1)

cpe:2.3:a:free_school_management_software_project:free_school_management_software:1.0:*:*:*:*:*:*:*

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