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CRITICAL · 9.0

CVE-2019-12739

lib/Controller/ExtractionController.php in the Extract add-on before 1.2.0 for Nextcloud allows Remote Code Execution via shell metacharacters in a RAR filename via ajax/extractRar.php (nameOfFile and...

Vulnerability Description

lib/Controller/ExtractionController.php in the Extract add-on before 1.2.0 for Nextcloud allows Remote Code Execution via shell metacharacters in a RAR filename via ajax/extractRar.php (nameOfFile and directory parameters).

CVSS Score

9.0

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
NextcloudExtract< 1.2.0

Related Weaknesses (CWE)

CWE-78

References

FAQ

What is CVE-2019-12739?

CVE-2019-12739 is a vulnerability with a CVSS score of 9.0 (CRITICAL). lib/Controller/ExtractionController.php in the Extract add-on before 1.2.0 for Nextcloud allows Remote Code Execution via shell metacharacters in a RAR filename via ajax/extractRar.php (nameOfFile and...

How severe is CVE-2019-12739?

CVE-2019-12739 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2019-12739?

Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Extract.