CVE-2021-43266

HIGH

7.3

CVSS Score

Published: November 2, 2021 at 09:54 PM UTC

Updated: June 17, 2026 at 04:10 AM UTC

1 product affected across 1 vendorMahara

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Severity

HIGH7.3

Exploit prediction

EPSS 1%

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mahara · Mahara

95%

20.04.0 ≤ v < 20.04.520.10.0 ≤ v < 20.10.320.10.0 ≤ v < 20.10.421.04.0 ≤ v < 21.04.221.04.0 ≤ v < 21.04.321.10.0 ≤ v < 21.10.1

Affected range stops below 20.04.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.10.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.10.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.04.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.04.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.10.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

x_refsource_MISCExploitThird Party Advisory

Source: [email protected]

https://bugs.launchpad.net/mahara/+bug/1942903

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://bugs.launchpad.net/mahara/+bug/1949527

x_refsource_MISCVendor Advisory

Source: [email protected]

https://mahara.org/interaction/forum/topic.php?id=8952

x_refsource_MISCVendor Advisory

Source: [email protected]

https://mahara.org/interaction/forum/topic.php?id=8995

CVSS

7.3HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-78

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