CVE-2019-12739

CRITICALCVSS 9/10EPSS 2.56%

Last modified

CVE-2019-12739 is a critical-severity vulnerability rated 9/10 on the CVSS scale. 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).. EPSS estimates a 2.56% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.0
9/10

CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:L/S:C/UI:R

EPSS Probability
2.56%

83.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NextcloudExtract< 1.2.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 directory parameters).
How severe is CVE-2019-12739?
CVE-2019-12739 has a CVSS score of 9/10 (CRITICAL severity). The EPSS model estimates a 2.56% probability of exploitation in the next 30 days.
How do I fix CVE-2019-12739?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST