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october/system arbitrary code execution

High severity GitHub Reviewed Published Jan 14, 2022 in octobercms/october • Updated Jan 30, 2023

Package

composer october/system (Composer)

Affected versions

>= 1.1.0, < 1.1.6
< 1.0.473

Patched versions

1.1.6
1.0.473

Description

Impact

Assuming an attacker with access to the backend is able to execute PHP code by using the theme import feature. This will bypass the safe mode feature that prevents PHP execution in the CMS templates.

Patches

Issue has been patched in Build 473 and v1.1.6

Workarounds

Apply octobercms/october@167b592 to your installation manually if you are unable to upgrade.

References

Credits to:
• Sushi Yushi

For more information

If you have any questions or comments about this advisory:

References

@daftspunk daftspunk published to octobercms/october Jan 14, 2022
Published by the National Vulnerability Database Jan 14, 2022
Reviewed Jan 14, 2022
Published to the GitHub Advisory Database Jan 14, 2022
Last updated Jan 30, 2023

Severity

High
8.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE ID

CVE-2021-32650

GHSA ID

GHSA-5hfj-r725-wpc4

Source code

Credits

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