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Unrestricted File Upload in ShowDoc v2.9.5

Critical severity GitHub Reviewed Published Sep 9, 2021 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

composer showdoc/showdoc (Composer)

Affected versions

< 2.9.6

Patched versions

2.9.6

Description

Unrestricted File Upload in ShowDoc v2.9.5 allows remote attackers to execute arbitrary code via the 'file_url' parameter in the component AdminUpdateController.class.php'.

References

Published by the National Vulnerability Database Sep 8, 2021
Reviewed Sep 9, 2021
Published to the GitHub Advisory Database Sep 9, 2021
Last updated Feb 1, 2023

Severity

Critical
9.8
/ 10

CVSS base metrics

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

Weaknesses

CVE ID

CVE-2021-36440

GHSA ID

GHSA-c442-3278-rhrg

Source code

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