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HIGH

CVE-2021-43266

CVSS v3

7.3

HIGH

EPSS Score

1.3 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exporting collections via PDF export could lead to code execution via shell metacharacters in a collection name. Additional, in Mahara before 20.10.4, 21.04.3, and 21.10.1, exporting collections via PDF export could cause code execution

Technical details

Published
2021-11-02

Frequently asked questions

What is CVE-2021-43266?

In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exporting collections via PDF export could lead to code execution via shell metacharacters in a collection name. Additional, in Mahara before 20.10.4, 21.04.3, and 21.10.1, exporting collections via PDF export could cause code execution

Is CVE-2021-43266 actively exploited?

Active exploitation of CVE-2021-43266 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-43266?

CVE-2021-43266 has a CVSS v3 base score of 7.3 (HIGH severity).

Is CVE-2021-43266 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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