CVE-2021-43266: Mahara

High severity, CVSS 7.3. EPSS: 1.3% chance of exploitation in the next 30 days.

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

Affected products

• Mahara Mahara: from 20.04.0, before 20.04.5 (fixed in 20.04.5); from 20.10.0, before 20.10.3 (fixed in 20.10.3); from 21.04.0, before 21.04.2 (fixed in 21.04.2); from 20.10.0, before 20.10.4 (fixed in 20.10.4); from 21.04.0, before 21.04.3 (fixed in 21.04.3); from 21.10.0, before 21.10.1 (fixed in 21.10.1)

Published 2021-11-02. Last modified 2026-06-17.